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oil复数 加s么

2023-08-24 23:04:18
TAG: oil 复数
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真可

oil复数加s

oils表示油类或者油画颜料

Having the disagreeable odor or taste of decomposing

oils or fats; rank.

腐臭的具有变质食油或脂肪那种难闻气味或味道的; 恶臭难闻

He is painting in oils.他正在用油画颜料画画.

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s-oil机油5w一40c多少钱一桶

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s-oilseven机油是全合成机油吗?

埃斯 7号 金装 全合成发动机油 S-OIL SEVEN GOLD汽油和乘用柴油发动机使用高性能欧洲型绿色环保
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罗伦佐之油的简介

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蓝壳是全合成机油吗?

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金东旭主要经历

金东旭金东旭(___、KimDongwook),1983年7月29日出生于韩国,韩国男演员。2007年,凭借《咖啡王子一号店》中陈夏琳一角走入观众视线。2009年,因在金容华编导的体育电影《国家代表》中出演洪哲一角而获得“Director"sCUT”最佳新人奖。2011年,主演同性题材电影《浪漫天堂》和恐怖片《猫:看到死亡的两只眼睛》。2012年6月,主演情色电影《后宫:帝王之妾》;8月30日,宣布入伍服役。2014年5月29日,正式退伍复出;12月,主演JTBC古装剧《下女们》。2015年,出演运动励志电视剧《Riders:抓住明天》。2018年5月,主演奇幻片《与神同行:罪与罚》,凭借该片获得韩国第23届春史电影节艺术电影部门特别奖最佳男配角奖;8月,继续主演奇幻片《与神同行2:因与缘》;9月,主演OCN犯罪悬疑剧《客:TheGuest》。2019年2月,主演爱情喜剧片《怎么就,结婚了》;4月,主演MBC月火剧《特别劳动监督官赵掌风》,凭借该剧获得MBC演技大赏月火剧部门男子最优秀演技赏和大赏。2020年3月,主演MBC爱情剧《那个男人的记忆法》。中文名:金东旭外文名:___,KimDongwook别名:金东昱国籍:韩国星座:狮子座血型:B身高:175cm体重:63kg出生地:韩国出生日期:1983年7月29日职业:演员毕业院校:韩国艺术综合学院戏剧院经纪公司:KEYEAST娱乐公司代表作品:咖啡王子一号店、国家代表、五感图、与神同行:罪与罚、与神同行2:因与缘、客:TheGuest主要成就:2007年MNETWORLD最受喜爱的明星2007年MBC演艺大赏最佳新人奖2019年MBC演技大赏月火剧部门男子最优秀演技赏和大赏第23届春史电影节艺术电影部门特别奖最佳男配角奖2019韩国电视剧大赏最佳男主角演艺经历2003年,金东旭出演由BaekWoon-Hak执导的惊悚电影《地铁危机》;同年,出演由郑国顺执导的韩国与中国电影集团合作拍摄的动作片《我的老婆是大佬2》。2004年,出演电影《芭蕾舞蹈教室》,饰演金纪泰一角。2005年,出演闵奎东执导的情感故事电影《我一生最美丽的一周》。2006年,金东旭出演由李宋熙日执导,李英勋、金南佶主演的同性恋电影《绝不后悔》,饰演宋明一角;同年,出演由安炳基执导,高小英、姜成珍主演的恐怖片《公寓》,饰演申都一角。2007年,金东旭出演电影《神灯仙女》;同年,出演由金泰希执导,赵允熙、金清主演的的现代剧情片电影《同居,同乐》,在剧中饰演秉石;同年,出演李允贞执导,尹恩惠、孔刘主演MBC喜剧《咖啡王子1号店》,在剧中饰演陈夏琳;同年,出演由金成旭执导,徐道营、朴彩京主演的电视剧《无法阻挡的婚姻》,剧中饰演王叁百。2008年,金东旭出演由丁正化执导,朴真熙、赵汉善主演的爱情喜剧片《甜蜜的谎言》,剧中饰演智勋。2009年,金东旭出演由韩国、日本联合制片武正晴执导,金桢勋、斋藤工主演的剧情片《首尔咖啡馆》,在片中饰演相仁;同年,出演由金容华执导,河正宇、金基石主演的体育片《国家代表》,在片中饰演洪哲,并且凭借该剧获得“Director"sCUT”最佳新人奖;同年,出演由许秦豪、闵奎东等联合执导,黄政民、金康宇等16位演员出演的以“性爱”为主题的多段式电影《五感图》,剧中饰演知云;同年,出演由黄义京、金元锡执导李栋旭、金贤珠、李荷妮主演的爱情伦理电视剧《伙伴》,剧中饰演尹俊。2010年,金东旭出演由林太宇执导,柳东根、梁美京主演的电视剧《蒲公英家族》,剧中饰演载河;同年,客串由舞台剧《寻找初恋事务所》改编的爱情喜剧片《寻找金钟旭》;同年,出演由金东郁执导,金应秀、沈恩敬主演的喜剧电影《快乐杀人者》,剧中饰演郑_;同年,出演MV《拜托我的男朋友》。2011年3月,金东旭主演由张镇执导的同性题材电影《浪漫天堂》,剧中饰演智旭一角;7月,与朴敏英、金艺纶合作主演边胜旭执导的恐怖片《猫:看到死亡的两只眼睛》,剧中饰演俊石;9月,出演由许宗昊执导,郑在泳、全度妍主演的动作片《倒计时》,剧中饰演许宗昊。2012年6月,金东旭与赵茹珍、金民俊合作主演金大承执导的情色电影《后宫:帝王之妾》,剧中饰演圣源大君;2012年8月30日,金东旭宣布入伍。2014年5月29日,金东旭正式退伍复出;12月,与郑柔美、吴智昊合作主演由赵贤卓执导的JTBC古装剧《下女们》首播,剧中饰演金银奇。2015年,出演由崔道勋执导,李清娥、崔汝珍、尹仲勋主演的运动励志电视剧《Riders:抓住明天》,饰演车基俊;同年,客串电视剧《看见鬼的刑警处容2》,饰演兽医。2018年5月,金东旭与河正宇、车太贤合作主演奇幻片《与神同行:罪与罚》,饰演冤死的兵长金秀鸿,凭借该片获得韩国第23届春史电影节艺术电影部门特别奖最佳男配角奖;6月,客串出演犯罪喜剧片《侦探2》,饰演警署新任组长;8月,继续主演奇幻片《与神同行2:因与缘》;9月12日,与金材昱、郑恩彩合作主演OCN犯罪悬疑剧《客:TheGuest》,饰演一直追查恶灵行踪的灵媒尹和平。2019年2月,金东旭与高圣熙共同主演爱情喜剧片《怎么就,结婚了》,饰演为了获得自由而计划结婚的航空公司老板成硕;4月,主演MBC月火剧《特别劳动监督官赵掌风》,凭借该剧获得MBC演技大赏月火剧部门男子最优秀演技赏和大赏。2020年3月,金东旭与文佳_共同主演MBC爱情剧《那个男人的记忆法》,饰演HBN新闻局主播李政勋。主要作品参演电影怎么就,结婚了-2019-02-27,饰演成硕与神同行2:因与缘-2018-08-01,饰演金秀鸿侦探2-2018-06-13,饰演李彦禧与神同行:罪与罚-2017-12-20,饰演金秀鸿三个夏夜-2015-07-15,饰演车明石None-2012-06-06,饰演圣源大君None-2011-09-29,导演许宗昊None-2011-07-07,饰演俊石None-2011-03-24,饰演智旭None-2010-12-08,饰演客串None-2010-04-08,饰演郑_国家代表-2009-07-29,饰演洪哲首尔咖啡馆-2009-07-18,饰演相仁五感图-2009-07-09,饰演知云None-2008-12-17,饰演智勋同居,同乐-2008-03-27,饰演秉石None-2007,饰演姜东熙None-2006-11-06,饰演宋明None-2006-07-07,饰演申都None-2006,饰演贤宇我一生最美丽的一周-2005-10-07,饰演闵奎东None-2005None-2005,导演闵奎东None-2004-12-03,饰演金纪泰None-2004,饰演朴贤镇我的老婆是大佬2-2003-09-05,导演郑多顺None-2003参演电视剧那个男人的记忆法-2020-03-18,饰演李政勋None-2019-04-08,饰演赵进甲客:TheGuest-2018-09-12,饰演尹华平自体发光办公室-2017-03-15,饰演徐贤None-2015-11-08,饰演车基俊None-2015-08-23,饰演兽医None-2014-12-12,饰演金银奇伟大的礼物-2011-09-11,导演裴泰燮None-2011-02-28,饰演文炫秀None-2010-01-30,饰演载河None-2009-10-28,饰演韩孝周,李彩英None-2009,饰演尹俊None-2009,导演金知焕,金志焕无法阻挡的婚姻-2007-11-05,饰演王叁百咖啡王子1号店-2007-07-02,饰演陈夏琳None-2006音乐剧MV作品广告sktelcon2007年农心拉面(与朴信惠合演)2007年s-oil加油站(与金雅中合演)三星手机系列SKECHERS斯凯奇音乐作品综艺节目获奖记录来源人物评价金东旭具备男性的魄力和得体的举止,是位相当有魅力的演员。他在音乐剧舞台上充分发挥了其洪厚的音量,歌唱实力备受认证,有着卓越的历代级舞台魅力。涉猎电视剧、电影、音乐剧、综艺等多方面的金东旭,是个多才多艺的明星。在金东旭出演的作品中,从不懂事调皮的打工生,到既柔弱又盲目的疯狂大王,以及浪漫的儒生等,多领域角色变换自如,逐渐提升了他的演技能力(搜狐娱乐评)人物争议2016年5月6日,韩国媒体称,金东旭和演员金高银正在恋爱中,并拍到两人在菲律宾约会的照片。随后,金高银方面做出回应表示,“金高银没有与金东旭恋爱,菲律宾旅行不是两人单独去的。”
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tyumen造句 tyumenの例文 "tyumen"是什麼意思

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2023-08-18 17:03:078

2017职称英语综合类阅读精选:Oil

Oil 油 1. The existence of oil wells has been known for a long time. Some of the Indians of North America used to collect and sell the oil from the wells of Pennsylvania. No one,however,seems to have realized the importance of this oil until it was found that paraffin-oil could be made from it; this led to the development of the wells and to the making of enormous profits. When the internal combustion engine was invented,oil became of worldwide importance. 1、油井的存在由来已久。北美的一些印第安人过去常常去宾夕法尼亚的油井采集油来出售。一直以来,没有人认识到这种油的重要性,后来人们发现它可提炼出煤油来,情况才为之一变。自此油井遂蓬勃发展,巨额利润也由此产生。当内燃机发明后,石油更具有世界性重要意义。 2. What was the origin of the oil which now drives our motor-cars and aircraft? Scientists are confident about the formation of coal,but they do not seem so sure when asked about oil. They think that the oil under the surface of the earth originated in the distant past,and was formed from living things in the sea. Countless billions of minute sea creatures and plants lived and sank to the sea bed. They were covered with huge deposits of mud; and by processes of chemistry,pressure and temperature were changed through long ages into what we know as oil. For there creatures to become oil,it was necessary that they should be imprisoned between layers of rock for an enormous length of time. The statement that oil originated in the sea is confirmed by a glance at a map showing the chief oilfield of the world; very few of them are far distant from the oceans of today. In some places gas and oil come up to the surface of the sea from its bed. The rocks in which oil is found are of marine origin too. They are sedimentary rocks,rocks which were laid down by the action of water on the bed of the ocean. Almost always the remains of shells,and other proofs of sea life,are found close to the oil. A very common sedimentary rock is called shale,which is a soft rock and was obviously formed by being deposited on the sea bed. And where there is shale there is likely to be oil. 2、现在驱动汽车和飞机的油的起源是什么?科学家对煤的形成一清二楚,然而论及石油时,它们就不那么有把握了。他们认为,处于地表下的油起源于远古,并是由海洋生物形成的。数亿的微小海洋动物和植物繁衍生殖并沉到海底。它们被厚厚的泥沙沉积物所覆盖,并由于化学变化、压力和温度的作用过程,在漫长的时间中变成了我们所知道的石油。这些生物要变成石油,必须被密封在岩石之中很长时间。如果瞧一瞧标明世界主要油田的地图,石油起源于海洋之说便可以得到证实,极少有油田是远离今天的海洋的。在某些地方,天然气和石油从海底冒出海面。含油的岩石与海洋也有渊源关系。它们是水成岩,是由海水作用沉至海底的。在有石油地方的附近几乎总是有贝壳遗骸和其他海洋生物的证据。一种十分常见的水成岩叫油页岩,他是一种很软的岩石,很明显是因为被压积在海底而后形成的。而哪儿有油页岩,哪儿就可能有石油。 3. Geologists,scientists who study rocks,indicate the likely places to the oil drillers. In some cases oil comes out of the ground without any drilling at all and has been used for hundreds of years. In the island of Trinidad the oil is in the form of asphalt,a substance used for making roads. Sir Walter Raleigh visited the famous pitch lake of Trinidad in 1595; it is said to contain nine thousand million tons of asphalt. There are probably huge quantities of crude oil beneath the surface. 3、研究岩石的科学家即地质学家给石油钻井工指明可能产生油处。有些地方,根本无需挖掘,油自动冒出地面,并已这样使用了几百年。在特立尼达岛,石油以沥青-即用作铺路的物质-形式存在。在沃尔特·罗利爵士在1595年访问过特立尼达的沥青湖,据说该湖的沥青容量有90亿吨。在其地表下可能有大量原油。
2023-08-18 17:05:191

oil exports为什么加s

固定用法。export英语单词,主要用作为名词、及物动词、不及物动词,作名词时意为“输出,出口,出口商品”,作及物动词时意为“输出,出口”,作不及物动词时意为“输出物资”。第三人陈单数,名词复数都是exports。
2023-08-18 17:05:261

路派pure.natural.oil.plant是什么意思

pure natural oil plant纯天然植物油
2023-08-18 17:05:352

When a rare disease ALD threatened to kill the four-year-old boy Lorenzo, his parents refused t...

小题1:C小题2:B小题3:C小题4:D 试题分析:文章讲述Lorenzo得了罕见的ALD,医生说ALD 还没有治愈的方法,但是他的父母不放弃,坚持实验,最后找到适合治疗这种病的方法。小题1:细节题:从文章第一段的句子:Doctors explained that there was no cure for ALD, and that he would probably die within three years.可知医生说Lorenzo 在三年内可能会死,是因为ALD 还没有治愈的方法,选C小题2:细节题;从文章第二段的句子; But doctors and the families of other ALD patients often refused to take them seriously. They thought the efforts to find a cure were a waste of time,可知其他ALD的病人认为Lorenzo父母的努力是浪费时间,选 B小题3:细节题:从文章第三段的句子:Despite the good results, scientists and doctors remained unconvinced. They said there was no real evidence that the oil worked and that the treatment was just a theory.可知科学家和医生相信Lorenzo"s Oil 只是在理论上有用,选C小题4:归纳题:从文章最后一段的句子:Finally, the boy"s father organized an international study to test the oil. After ten years of trials, the answer is: the oil keeps ALD children healthy.可知这种油做为ALD的疗法真的管用。选D
2023-08-18 17:05:551

高分!!翻译这篇文章为英文

翻得太好了,以后我有不懂的就来找你翻.Q23132538
2023-08-18 17:06:045

【关于四级阅读问题】

你看完文章要对文章的结构及主要意思大体掌握了,这样看到题时,即便不能马上判断出答案,但是直到去文章的什么地方找。速度很重要,但识别只求速度。在看文章时,可以划出概括文章中心思想或是段落大意的句子,这样看题时就一目了然了,只有细节题要返回去仔细找。我还是建议先看文章,因为这样对文章的整体基调有所长掌握,考题中有很多都是正对作者态度,或是文章大意的。先看问题,会有点摸不到头脑了。
2023-08-18 17:06:182

oillife汽车仪表盘什么意思

这意味着车辆发动机机油的剩余寿命。这个英文字符后面会跟发动机机油的具体百分比。当机油百分比为20%至30%时,需要对机动车进行保养,更换机油和机油滤清器。如果车辆不换油,会怎么样?如果不更换机油,会降低密封效果和冷却效果,达不到正常的润滑效果和清洁效果。所以要定期保养发动机,更换机油,更换机油滤清器,保证发动机的正常使用。如何选择车辆的机油首先可以按照四家S店推荐的机油使用。自然吸气车可以随意使用机油。普通矿物油、半合成油、全合成油都可以。如果它这是涡轮增压发动机,你需要注意。必须使用所有合成发动机机油,以满足发动机的要求。百万购车补贴
2023-08-18 17:06:291

英语翻译

The world"s electricity consumption is expected to increase dramatically
2023-08-18 17:06:403

中国石油,简称SNPC,中国石化S INOPEC各什么意思中海油是什么缩写?

海油是CNOOCChina national offshore oil company
2023-08-18 17:06:571

英国经济发展史 要英文版的 急需!

The Economy 英国经济 I. The Evolution of the British Economy since the War The evolution of the British economy since WWII falls into three periods: 二战后英国经济发展可分为三个阶段: (1) Steady development in the 50s and 60s: The British economy in this period is characterized by slow but steady growth, low unemployment and great material prosperity with rising standards of consumption. (1)战后50-60年代平稳发展时期。其主要特点是经济缓慢而持续增长,失业率低,物质丰富,人民消费水平不断增长。 (2) Economic recession in the 70s: In the 1970s among the developed countries, Britain maintained the lowest growth rate and the highest inflation rate, and the high record of trade deficits. (2)70年代经济滞胀。在70年代,英国在所有的发达资本主义国家中,始终保持最低经济增长率,最高的通货膨胀率,和最高的贸易赤字纪录。 (3) Economic recovery in the 80s: An outstanding feature of the economic recovery in the 80s was its length, lasting seven years. Another was the improved financial position of the government, with stronger current account of the balance of payments. (3)80年代经济复苏。一个显著特点是时间长,复苏持续了7年。另一个特点是国际收支大大盈余,政府金融地位最高。 Measures taken by Mrs. Thatcher"s government to improve the economy Mrs. Thatcher"s government took numerous measures to improve the efficiency of the economy during the past decade, using both macroeconomic and microeconomic policies. 撒切尔政府运用宏观经济政策和微观经济政策,采取许多措施提高经济效益。 (1) Macroeconomic measures were directed towards bringing down the rate of inflation and achieving price stability. 宏观经济政策直接针对降低通货膨胀率和维持物价稳定。 (2) Microeconomic policies were aimed at working with the grain of market forces by encouraging enterprise, efficiency and flexibility. 微观经济政策旨在通过鼓励实业,效率和灵活性共同努力提高市场竞争力。 Reasons for the British coal mining is called a "sick" industry today. Reasons for the British coal mining is called a "sick" industry today. 英国煤矿被称为"生病"工业的原因。 Today the coal industry in Britain is on the decline,the number of miners, collieries and the total output have been falling. 如今的英国煤矿业衰退,从而导致矿工、煤矿的数量和总产量都大大下降。 The reasons for the decline are as follows: exhaustion of old mines, costly operations of extraction, poor old equipment, little investment, fall in demand due to imports of cleaner, cheaper and more efficient fuels, etc. 煤工业衰退的原因包括:老煤矿的枯竭,昂贵的提炼费用,破旧的设备,极少的投资,由于进口更干净、更便宜、更高效的燃料导致的需求下降等等。 Britain"s oil and natural gas 英国的石油和天然气 Natural gas was discovered in 1965 and oil in 1970 under the North Sea. Today Britain is not only self-sufficient in oil but also has a surplus for export. The transport and domestic heating systems mostly depend on oil. So does the food supply, because most agriculture is highly mechanized. Modern farming requires things which are all oil-based. 在1965年及1970年在北海发现天然气和石油。今天英国的石油不仅能自给自足,还有盈余供出口。交通和家庭供热系统主要依靠石油,因为大部分农业的高度机械化,食品供应也靠石油。 Main problems associated with Britain"s iron and steel industry today. 如今英国钢铁工业的主要问题。 British iron and steel industry is declining for the following reasons: 英国钢铁工业衰退的原因如下: 1. Local supplies of iron ore have become exhausted; 当地贮备枯竭; 2. Old fashioned furnaces for making coke cannot recover valuable by-products; 他们生产焦炭的老式炉不能提取有价值的副产品, 3. Blast furnaces, steelworks, and rolling mills are often separated from each other and thus cannot perform as well as more compact operation; 高炉、钢铁厂和轧钢厂经常分开,导致不如更紧凑的企业出效益; 4. Many steelworks have to be closed down, causing major unemployment in an area. 许多钢
2023-08-18 17:07:082

oillife汽车仪表盘什么意思

是指车辆机油的剩余寿命。在这个英文字符之后,会出现机油的具体百分比。当机油的百分比为20%至30%时,有必要对机动车进行保养,并更换机油和机油滤清器。车辆不换油会怎么样?如果长时间不更换机油,会降低密封效果和冷却效果,达不到正常的润滑效果和清洁效果。所以要定期保养发动机,更换机油,更换机油滤清器,保证发动机的正常使用。如何选择车辆的机油首先可以按照四S店推荐的机油使用。自然吸气车可以随意使用机油。普通矿物油,半合成机油,全合成机油都可以。如果是涡轮增压发动机,就需要注意了。您必须使用所有合成发动机油,以满足发动机使用的要求。以上与oillife汽车仪表盘的含义有关。希望对大家有帮助。想了解更多关于汽车的知识,请持续关注查车。百万购车补贴
2023-08-18 17:08:041

mace怎么读

mace的英式发音为/meu026as/,美式发音为/meu026as/。一、mace的基本释义。名词:狼牙棒(古代兵器);权杖;肉豆蔻干皮,肉豆蔻种衣(烹调香料)。二、mace的复数形式。mace的复数形式为maces。三、mace的短语搭配。1、double blade mace:重片肉豆蔻衣。2、mace butter:肉豆蔻油。3、Papua mace:马卡刹肉豆蔻衣。4、reed mace:香蒲。5、mace oil:肉豆蔻油,肉豆蔻油。6、mace camphor:肉豆蔻衣脑。7、mace-bearer:执权杖者。8、drum major mace:鼓主锤。9、ebon mace:黑檀锤。mace的例句:1、The Lord Chancellor presides over the house,with the mace behind him.上议院议长主持议会,其身后放有一根权杖。2、An official who carries a mace of office.The Minister of State commands the services of many officials.一个掌握办事处权杖的官员。国务大臣掌管许多官员的工作。3、Sharur was the mace of the Sumerian god Ninurta and possessed the ability to speak.沙鲁尔杖是苏美尔神话中一把会说话的权杖,它的主人是尼努尔塔。4、Dr.Mace would be assisted by scientific specialists in the agency.该机构的其他科学专家将协助梅斯博士的工作.5、The Speaker is preceded by the mace-bearer upon his entry to the chamber.当议长走进议事厅的时候,前面由执议长权标的人开路。
2023-08-18 17:08:461

机油标识SAE5W-40含义解读

识别SAE5W-40油的意义原装机油SAE5W-40。这个标签美国汽车工程师学会(SocietyofAutomotiveEngineers)SAE是美国汽车工程师协会的缩写,SAE等级代表油品的粘度等级。SAE30和SAE40是单级油,SAE10w-30和SAE15w-40是多极油。酒吧的前半部分表示该品牌机油在冬季的低温粘度性能。5W根据SAE方法,它被归类为发动机油。冬季用油6种,夏季用油4种,冬夏通用油16种。冬天用的油的等级分别是0W、5W、10W、15W、20W、25W。符号W代表冬天。W前的数字越低,其低温粘度越低,低温流动性越好,适用的最低温度越低。夏季用油的等级分别为:20、30、40、50。数字越大,粘度越高,适用的最高温度也越高。夏季一般油的品牌有5W/20、5W/30、5W/40、5W/50、10W/20、10W/30、10W/40、10W/50、15W/20、15W/30、15W/40、15W/50等。按照API质量分类,机油分为汽油机油系列(即S系列)和柴油系统(即C系列)。每个系列的油品按字母顺序排列,分为几个等级。酒吧的后半部分表示该品牌机油在夏季高温环境下的粘度性能。W前的数字越低,润滑油低温流动性越好,越容易启动汽车。W后的数字越大,高温环境下油的粘度越好,油膜的强度越强。这个油基本上一年四季都可以用。识别机油的等级,有全面的了解。无论是壳牌喜力还是其他品牌的机油,它的油桶里都有很多英文和数字,新手经常搞不清楚。虽然有修理工的推荐,但一般车主还是没有头绪。其实只要知道简单的规则,就能读懂油桶上的标志,轻松为自己的爱车选择合适的润滑油。SAE的含义SAE是美国汽车工程师协会的缩写,SAE等级代表油品的粘度等级。SAE30和SAE40是单级油,而SAE10w-30和SAE15w-40是多级油。其中‘w"前面的数字越小,低温时粘度越低,发动机在冷启动时的保护能力越好;“w”后面的数字是油的耐高温指数。以壳牌喜力机油为例,最典型的数据是SAE10W-40。应用程序接口API是API比重的缩写,API等级代表机油质量的分类。它用一个简单的代码把发动机的工作能力描述为机油。API发动机机油分为两类:“S”系列代表汽油机油;“C”系列代表柴油机油;当字母“S”和“C”同时存在时,意味着发动机油是汽油和柴油的通用类型。‘S"以前,它主要用于汽油发动机。相反,它主要用于柴油机。从‘SA"到‘SJ",每增加一个字母,机油的性能就会比前一个更好,机油中会有更多的添加剂来保护发动机。字母越低,质量等级越高。国际品牌中的油品等级大多在SF级以上。比如壳牌喜力(ShellHelixPlus)是APISJ级,而壳牌喜力机油(ShellHelixRedMotorOil)是APISG级,说明壳牌喜力的质量等级高于喜力。石油品牌识别通常采用粘度分类和质量分类对机油进行分类。国际上广泛使用的SAE(美国汽车工程师学会)分类法和API(apigravity)分类法是两种分类法的典型代表。按照SAE方法,冬季用油6种,夏季用油4种,冬夏通用油16种。冬季油品牌分别是:0W、5W、10W、15W、20W、25W。符号‘W"代表冬天。W前的数字越小,其低温粘度越低,低温流动性越好,适用的最低温度越低。夏季机油等级分别为:20、30、40、50,数字越大,粘度越高,适用的最高温度也越高;夏季一般油的品牌有5W/20、5W/30、5W/40、5W/50、10W/20、10W/30、10W/40、10W/50、15W/20、15W/30、15W/40、15W/50等。根据API质量分类,机油分为汽油机油系列(即S系列)和柴油机油系列(即C系列),每个系列的机油按英文字母顺序分为几个等级。进口和香港机油包装上的标志由SAE粘度分类等级和API质量分类等级组成。通常以SAE开头,后面是粘度代码;而按照API质量分类的机油标号一般会省略API,直接标注质量等级代码。例如,SAE10WSD标签标明粘度分类为SAE10W、质量等级为APISD的冬季汽油机油;参考号为SAE30SD,表示粘度分类为SAE30、APISD质量的夏季汽油机油;参考号为SAE10W-30SD(或SAE10W/30SD),表示该油为冬夏季通用汽油机油,粘度满足SAE10W和SAE30的标准,质量等级为APISD。发动机油的分类和不同特性朋友在选择机油的时候,往往只考虑价格,而忽略了它的性能,以为所有的机油质量都差不多。造成这种误解的原因是人们对机油的
2023-08-18 17:10:031

全世界用英语怎么说

  你知道吗?下面来学习一下吧。    全世界的英语说法1:   worldwide    全世界的英语说法2:   all over the world    全世界的英语说法3:   All Around the World    全世界的相关短语:   传遍全世界 spread across the world ; spread all over the world / across the world / throughout the world   遍布全世界 all over the world ; spread all over the earth   全世界产量 worldwide production   全世界会员 members throughout the world ; Member of the world ; Members around the world   解放全世界 The World Set Free   闹翻全世界 Rock This World   颤栗全世界 Thrill the world    全世界的英语例句:   1. The collision took place in the busiest shipping lanes in the world.   撞船事故发生在全世界最繁忙的航道上。   2. He mobilized public opinion all over the world against hydrogen-bomb tests.   他动员全世界的舆论反对氢弹试验。   3. The scale of the problem is now universally recognised.   现在全世界的人都已认识到了这个问题的严重性。   4. The Gulf has 65 per cent of the world"s oil reserves.   海湾地区拥有全世界65%的石油储藏。   5. For 40 years she has captivated the world with her radiant looks.   40年来,她那令人惊艳的美貌让全世界为之痴迷。   6. We"re going to be left behind by the rest of the world.   我们将被全世界甩在后面。   7. There is worldwide concern about the destruction of the rarests.   全世界都在关注热带雨林遭到破坏的问题。   8. They had e to the world"s most famous pick-up joint.   他们来到了全世界最有名的寻花问柳之地。   9. He said such methods would discredit the party worldwide.   他说这一举措会让该政党在全世界名誉扫地。   10. Ethiopia has almost the lowest oil consumption per capita in the world.   衣索比亚的人均石油耗费量几乎是全世界最低的。   11. Their books are loved by young readers the world over.   他们的书得到了全世界年轻读者的喜爱。   12. Enviros Consulting has a client base of more than 2,000 organisations worldwide.   EnvirosConsulting公司在全世界拥有逾2,000家组织机构的客户群。   13. Britain is now the envy of the world"s record panies.   英国现在是全世界唱片公司羡慕的物件。   14. Rice is the staple food of more than half the world"s population.   稻米是全世界一半以上人口的主食。   15. The entire world must take notice of something like this.   全世界一定要关注这样的事情。
2023-08-18 17:10:151

英语选择题,希望有讲解或翻译~

1、D。2、B。每隔一天去看一次电影。everyotherday=everytwodays3、B。them指代friends。脸蛋好看可以赢得朋友,可是要想拥有这些朋友需要自己的品质和个性。4、D。比较结构对等。比较的是oilreserves,因此替代词用those。5、B。应该是whoever。宾语从句引导词在从句中作主语,指人,因此不能用whomever。6、B。强调句式。本题强调的是主语NatTurner。
2023-08-18 17:10:221

shower oil是什么意思

shower oil沐浴油很高兴为您解答如果你对这个答案有什么疑问,请追问
2023-08-18 17:11:143

lightsweetcrude-oil是什么意思

light sweet crude-oil轻甜原油crude oil[英][kru:d u0254il][美][krud u0254u026al]n.原油; 例句:1.Crude oil"s recent rise has been more muted. 原油价格近期的上涨步伐已得到进一步抑制。2.A surge in crude oil prices also helped bullion gain this month. 石油价格的上涨本月也帮助了黄金的上涨。3.Metal and crude oil prices slumped. 金属和原油价格下跌。
2023-08-18 17:11:341

密立根油滴实验步骤

一:浅盘中放适量水,二:用胶头管将配好的酒精油酸液滴入量筒,记下一毫升所用滴数。三:撒上痱子粉。四:往水面上抵一滴溶液。五:面积稳定后把玻璃板放在浅盘上,用彩笔描出形状。六:将玻板放在坐标纸上算出面积S。七算出一滴油酸体积V。八:D=V/S
2023-08-18 17:11:452

求一篇西安石油大学的英文简介。

这是西安石油学院自己做出的简介,应该是权威的吧: Brief Introduction to Xi"an Shiyou University (XSYU) Xi"an Shiyou University (XSYU) stands out as the only one characterized by its disciplines in petroleum and petro-chemistry in the northwestern part of China. Today, it operates with the joint support of both the local provincial government and the three major oil companies in China ( CNPC, SINOPEC, and CNOOC ). It is also one of the universities selected by the provincial government for its “12th Five-Year Plan” project of high-level university development.The school was founded in 1951 as Northwest Oil Industry Secondary School. To meet the demands for more talents as a result of the rapid development of China"s oil industry, in 1958, Xian Petroleum College was founded with the approval of the State Council. In 1969 (the Great Cultural Revolution), the school was transformed into a factory. In1980, the school was resumed .In 2000, it was transformed from a school attached to CNPC to a regular provincial one co-funded by central and local government. In 2003, the school was upgraded from college to university, renamed as Xi"an Shiyou University (XSYU) .In 2009, Shannxi provincial government and the three major oil companies in China signed an agreement on their joint efforts for the development of the school. In 2011, the school was included as one of the universities selected by the provincial government for its “12th Five-Year Plan” project of high-level university development.The City Campus of the university is located in the High & New-tech Development Zone of Xi"an, and the New Campus is in Xian Fengjing Industrial Zone , Hu county, Xian. The school covers a total of 2207.15 mu, with a total real property worth 1670,000,000 RMB, and a total of instrument and facilities worth 281,000,000RMB. The university enrolls students from 31 provinces, municipalities and autonomous regions in China. Currently, there are 2300 regular postgraduates and 17,800 undergraduates. Besides, we have about 300 international students and more than 15,000 students in Continuation Education. Xi"an Shiyou University consists of 13 colleges, 4 departments and one authorized discipline for co-cultivation of doctor candidates. Besides, we have 14 authorized subject areas of first-level discipline for Master degree and 58 authorized areas of Second-level discipline for Master degree, with 3 different categories and 13 fields for master degree conferring, including the 11 fields in Master of Engineering. The school was recently authorized to admit the qualified under-graduates on campus directly into its graduate school. So far, there are 7 key disciplines at provincial and ministerial level, 1 provincial feature discipline in philosophy and social sciences, 1 State Engineering Lab and 19 provincial key labs and institutes of engineering technology. Of the 55 undergraduate majors, there are10 provincial Feature Majors, 5 provincial Brand Majors, and two majors were entitled by the State"s Education Commission with “Development of Excellent Engineers”. Besides, there are 17 provincial Excellent Courses, 5 provincial Demonstration Centers of Experimental Instruction and 4 provincial Experimental Areas for Creative Talents" Development-Mode.There are 1,600 staff members, with1000 full-time teachers. Of them, there are over 500 professors and associate professors, about 300 tutors for Ph.D. or master degree candidates, and 660 of the staff have won their Ph.D. or master degrees. There are 7 provincial Teaching Teams, 2 experts of National Outstanding Contribution Prize Winner, another 40 experts either with a title of Provincial Outstanding Contribution Prize Winner or enjoying special government allowance. There are 10 provincial and ministerial Trans-century Academic Leaders, 8 provincial Distinguished Teachers, 4 national and provincial Excellent Teachers. One of the teachers was admitted into the National Talent Project of the New Millennium, 5 teachers were admitted into the provincial One Hundred Talent Project, and one was appointed as the provincial San Qin Scholar, and another 3 have won the title of Shannxi Provincial Retain Specialist. The school has also hired 10 academicians from both home and abroad as Distinguished Visiting Professors.To meet the new demands of the nation"s energy strategy and regional economic development, the school has devoted much not only to teaching quality but to scientific research, and its overall strength in science and technology development has steadily improved. In the last three years, the total number of key national and provincial projects, including the National Natural Sciences Fund, National Social Sciences Fund, Project 863 and 973 amounted to 198, with a total fund of 350,000,000RMB. And the total amount of fund from various projects in the year of 2011 alone came to 127,000,000RMB. The school has won 47 national and provincial & ministerial prizes for its scientific and technological achievements in the past five years, with one Second Prize of National Technical Invention Award ( in 2007), one Second Prize in National Prize for Progress in Science and Technology (in 2010), five first prizes of Shannxi Provincial Award for Science and Technology. The school was so far granted 94 national patents of invention, 106 patents of new & practical technologies. Up till now, 47 academic monographs were published, and 613 papers from the school have been cited by the three major information retrieval system of SCI, EI and ISTP. One of the school"s scientific research teams won the May 1st Labor Merit Certificate. The school also advocates and is actively involved in international exchanges and cooperation. Up till now, it has successively signed cooperation agreements with 39 universities and institutions in U.S.A., U.K., Russia, etc., of which, 13 American universities are our partners for the Sino-American 1+2+1 Dual Degree Program for co-cultivation of undergraduates and postgraduates. Besides, we have a 4+2 Bachelor-Master Program with two universities in Germany, 4+1 Undergraduate Program with Britain, Russian Major Exchange Program with Russia, etc.With our constant efforts, great achievements have been made in many aspects of our school development. In 2003, the school was awarded by Shannxi provincial government as the Demonstration Center for Campus Culture; In 2007, it was awarded by the State Education Commission as the Advanced Unit of Discipline Inspection among the educational agencies in China, In 2008, it was granted a title of Provincial Civilized Campus by Shannxi Provincial CPC Committee and Shannxi People"s Government; and It was rewarded by Shannxi Provincial Education Commission as the Advanced Primary Party Committee among the universities in Shannxi in 2006,2009 and 2011; And, it was rewarded as the Safe Campus by Shannxi Provincial Education Bureau, and provincial Public Security Bureau
2023-08-18 17:12:171

肥胖症 问题: 肥胖症

Getty Images Itu2019s shortly after 10 a.m., and The Body—all 237 pounds of him—is in his cubicle, sifting through e-mails. Iu2019m wedged next to his liver, sifting through the metabolic remains of his morning drink: Vitaminwater. It calls itself a “nutrient enhanced” beverage, a nutritious cocktail. Ha! Itu2019s mostly sugar in a bottle, and I love it. It sneaks past the digestive system and lands in the liver, which converts it to fat and sends it straight to me. What a bonanza!Itu2019s a great time for me and my brethren fat cells. After millennia of toeing the line and giving up our stores whenever the muscles and nerves called on us, weu2019re now taking over. You donu2019t have to take my word for it. You can see it on the streets every day. More than 35 percent of adult Americans are obese. Not just overweight—obese. Cardiovascular disease? Type 2 diabetes? Cancer? Not my problem. Iu2019m livinu2019 large.By 11 a.m.,The Bodyu2019s starving. That muffin he had for breakfast provided plenty of calories, but they donu2019t satisfy him the way they used to. See, itu2019s my job to send a hormone signal—called leptin—to the brain so it makes The Body feel full. It used to work like a charm. But these days, I pump leptin like itu2019s a Middle Eastern oil well, and it just floats around in the bloodstream, aimless. With all that excess insulin swirling around to help The Body sop up his extra sugar intake, the brain doesnu2019t receive my usual leptin signal and issue the “youu2019re stuffed, stop eating” message. So heu2019s more apt to feel hungry soon after he finishes eating.Life is sweet—saccharine, really. But it wasnu2019t always. I remember 40 years ago (The Body was barely a teenager) when I was born along with many of my fatty friends (puberty, the school nurse called it, which is when most adult fat cells should finish forming). Iu2019d wait all day for some spare fatty acids I could store. Back then, most of the nutrition got used up. We fat cells would swell slightly, then shrink again. Those were lean times.But Iu2019m not going anywhere. I mean that literally. Fat cells never disappear. Weu2019re virtually indestructible. The Body can deprive me of the greasy good stuff, and Iu2019ll wither—but when he hits the drive-through again, Iu2019ll rebound faster than he can say “Supersize me!” In a normal body, fat cells are mostly done forming after puberty. But if youu2019re obese, your fat cells plump up so much that new ones can be created. And lately, my neighborhoodu2019s been getting a little crowded. Every time a fellow fat cell fills up and hits its maximum storage capacity, a new fat cell pops up next door. Iu2019ve heard that a normal body has around 40 billion fat cells, but The Body rolls deep—in here, there are 80 billion just like me!Iu2019m pretty lucky. Back when The Body went off to college, he developed a soda habit. At almost every lunch, heu2019d knock one back. It was a special treat, and Iu2019d snag a few fat droplets from the liver each time and store them up. He liked the caffeine, too, the pep it gave him in the afternoon. Soon enough, after The Body graduated and found a job, he needed another can of soda just to push through the midafternoon slump. That was the start of my glory years.Nephron via Wikimedia Commons Hear that? The Bodyu2019s opening a can of soda as he digs in to his low-fat microwave lasagna. Heu2019s trying to cut back, shed a few pounds—and hey, if youu2019re trying to lose weight, it makes sense to eat less fat. But have you ever tried lasagna without butter or oil? Tastes like cardboard. So thereu2019s extra salt and sugar to compensate, and itu2019s still easy for me to convert some of that sugar to fat and squirrel it away. He has no idea!The poor sap. Back in college, when The Body skied or cycled almost every weekend, his weight was under control. His diet had a lot less sugar, and his brain listened to my leptin warnings, quashing his hunger whenever I managed to plump up. Iu2019d get a little ahead after a big weekend of beer and wings, inflate a tad. Then the next day heu2019d eat a bagel and apple for breakfast and jump on his bike. His muscles burned up all the handy glucose, and Iu2019d be forced to break down some of my precious self into fatty acids and glycerol. Iu2019d give glycerol to the liver, which would convert it into glucose to burn, and the fatty acids would go straight to the muscles for energy. Iu2019d deflate and hunker down, waiting for his next binge.Now he polishes off the lasagna tray in six bites and swivels back to his computer, clicking and clacking through the afternoon. When he heaves himself from his chair to head home at 5 p.m., itu2019s the hardest his heart has had to work all day. Iu2019m not worried, though—thereu2019s plenty of fuel in his muscles to provide energy, so I never have to offer up any of myself to help. Iu2019m lying low, laughing, confident Iu2019ll never be called on to liquidate my stash.I get to relax during the hour-long commute home. What will I have for dinner tonight? Fried chicken? Burgers? But when The Body sags into his chair at the dinner table, he sees grilled chicken and salad. Lettuce, tomatoes, peppersu2026 and what the heck is that, toasted pine nuts?! Oil-and-vinegar dressing, not even creamy ranch. Unfortunately, the saladu2019s fiber slows his digestion of the sugary dinner roll he snags from the basket. What gives? he asks. Weu2019re eating healthy, says his wife. No more junk for dinner.This could be bad for me, but I know The Body, and true to form, he cracks a beer. Sweet relief! I can score fat out of a beer as well as a can of soda. The ethanol it contains is a derivative of sugar, so some of the boozy goodness goes through the liver and converts to fat. After dinner, he takes the dog out for a walk. Thankfully, a casual stroll wonu2019t exert enough energy to dip into my storage. Even better, when he gets home, he plops down to watch the game. Conditioned to snack at night, he grabs a Rice Krispies square, a tiny sugar boost for me. He slides into bed around midnight, hoping for his usual six hours of sleep. While The Body snoozes, I get to relax too. He doesnu2019t rely on my stores during the middle of the night, so Iu2019m waiting for morning and already pulsating. I know his lack of sleep will make him stressed, hungry, and more likely to crave sugary, high-carb foods. Mmm, maybe doughnuts for breakfast?
2023-08-18 17:12:261

机油和变速箱油有什么区别?

应该是发动机润滑,另一个是齿轮润滑。
2023-08-18 17:12:5715

英语高手来啊!!我会加100分!!

An increasing number of people were losing their jobs in last month according to the latest figures. Government is now going to take more responsibility for job employment when private sectors nearly stop hiring. Though a total of 17.1 million people were employed in July, it was still 1.3 per cent lower than the same period last year. If the situation remains, Canada will add new jobs at the slowest pace since 1992. The reason maybe that part-time area has grown much faster than the full-time job area.Central Canada was the worst performing region according to these statistics, Ontario lost 19,000 jobs and Alberta lost almost 4,000 in July which was the second monthly loss this year. Meanwhile, Alberta"s oil sector was facing problems in terms of slumping crude prices. Overall, Nova Scotia, New Brunswick, Manitoba and British Columbia saw their workforces expand in the month, while the other six provinces posted lower employment numbers. The manufacturing sector lost 32,000 jobs in July. In the past 12 months, the country has lost 88,000 manufacturing jobs. The only industry to show appreciable gains in employment in July was the accommodation and food service sector, up 22,000 jobs in the month.
2023-08-18 17:13:503

求翻译,谢谢

Near the XXXX""XXXX" in 1988, comprehensive technology, the public issue. Domestic unity of successive publications: 13-1088 / CN TE international successive publications of ISSN number: 10-8345 YouFa code: domestic 18-89."By the state science and technology commission XXXX" is established, the press and publication administration and approved by China national petroleum corporation, China"s oil and gas pipeline company limited company sponsored by national Chinese core periodicals in China, and is the only specialized gas storage reported disciplines scientific research and technical information of sci-tech journals by national authorities, the press and publication administration awarded "China", "double step for successive years," journal of China by the ZongKu knowledge resources - China sci-tech periodicals database of high-quality goods ", Chinese core periodicals wanfang data (selection) database "" Chinese journal of scientific papers statistical sources such as database.Since founded, the gas storage with XXXX "career, virtue. Based on the industry, we with high sense of responsibility and mission, closely followed the development of relevant industry technology of dynamic, attention to the development trend of international science and technology periodicals from journals and big issue from publishing experience, professional, efficient, neutral, modern, interactive and affinity, humanization and constantly promote the concept of "XXXX to industry, exquisite sci-tech periodicals in different historical periods of gas storage and showed its love and loyalty to the cause. Currently has become China"s oil and gas transportation industry, academic communication, information dissemination, and is an important window and carrier gas storage technology general practitioner indispensable mentor.This paper covers the gas storage discipline of professional technology domain. Combined with industry technology development, Settings, such as: 22 columns were reviewed, conveying technology, oil and gas storage, integrity, design calculation and experimental research, heat preservation, mechanical equipment, testing technology, etc.Currently, China"s oil and gas storage and rapid development of business, to the XXXX, have brought the unprecedented development space. In the great opportunities and challenges, we will continue to the upright posture, thick arms, firmly assume overall display China"s progress and development, transportation business and services in China to promote the progress of science and technology, industry, transportation research achievements transformation to the actual productivity. The reports on objective attitude, to neutral oil production research, outstanding features, outstanding advantages transportation industry field, discipline and the reports of the brain, researchers makers as the assistant of the ladder, QiuZhiZhe motivator, schools, the treasure of the booth, BBS, practitioners to fight the XXXX "industry authority, trustworthy, flavor of integral sci-tech periodicals.
2023-08-18 17:14:014

卡西欧EFR-506手表的外圈有 OILLBS. U.S. GAL. LITRES. FUELLBS.这些英文表示是干什么用的?

是个计算尺功能的标尺,可以通过按键来完成一些换算,oil ,lbs:汽油,镑,gal:加仑litres:升fuel,lbs:燃料,镑。这个不知道是神马燃料。。US是美国,你懂得。大概就是说完成从重量到体积的换算,意思是有的地方加油可能是按照重量加的,你只知道需要加多少升,肿么办,你就把计算尺的标记对准你想要的升数上,那个oil,lbs位置就会算出你需要加多少镑。可能一般用不到吧,自己大体算算就是了。。
2023-08-18 17:14:101

英语高手请帮忙?很急,这周就要交了

你这论文选的也太难了吧~~
2023-08-18 17:14:397

求,英语高手,帮我翻译下这段较为专业的文字,在线等!

一看就知道是英语专业论文的时候,摘要需要英文的!
2023-08-18 17:14:583

Atlantic coast是什么意思

atlantic coast 点击发音 添加到我的生词本phr. 大西洋海岸英英解释名词解释:a coast of the Atlantic Ocean
2023-08-18 17:15:082

词:robust 英英释义:a robust system, organization etc is strong and not likely to have problems 例句:China"s economy has begun to slow after years of robust growth. 2. 为什么选这个词? “robust”是形容词,有多个意思,我们今天学习它表示“强劲的、坚固的、健康的”的用法。很多人其实很早就见过这个词了,矿泉水品牌“乐百氏”的英文名就是 Robust。我们可以用 robust 来替换 strong,在口语和写作中都可以使用。下面我们通过几个例子掌握它的用法。 中国经济在经历了多年的强劲增长之后增速开始放缓了,可以说: China"s economy has begun to slow after years of robust growth. 在纳德拉接任微软 CEO 后,微软开始恢复强劲的增长,可以说: After Mr Nadella took the helm of Microsoft, the company started to restore robust growth. 国家的政治体系非常健康,这确保了顺利的权利交替,就可以说: The country"s robust political system ensures smooth transition of power. 下面来看《经济学人》中的几个例子: 1)Retail sales were also robust, rising 9.8% in June compared with a year earlier, up from 8.6% in May. 2)Even the world"s oil colossus, Saudi Aramco, is making a bet on petrochemicals and refining, demand for which should remain robust even if a global carbon price one day depressed that for crude. 3)When Mr Bolsonaro took office in January investors thought he might let Mr Guedes, a free marketeer, reform the unaffordable pensions system, liberalise the economy and restore robust growth. 4) Between 2010 and 2018 two of the three fastest-growing metro areas in America were in Texas: greater Dallas and Houston each gained more than 1m people. The state has a robust oil and gas industry and has succeeded in diversifying its economy. 3. 怎样学会使用这个词? 1)翻译下面的句子: 班加罗尔(Bangalore)有一个非常健康的 IT 产业。 (参考翻译:Bangalore has a robust IT industry. 或 Bangalore boasts a robust IT industry. 或 Bangalore is home to a robust IT industry.) 2)结合自己的生活、学习、工作、兴趣等,想象在什么语境下会用到这个表达。先简要描述这个场景,再造句。 例子: 场景:
2023-08-18 17:15:171

稠油热采用英文怎么翻译

The steam stimulation technology is the most popular method in developing the heavy oil and also the main method for thermal production of heavy oil in our country. In the past dozen years, new progress has been opened by adopting the steam stimulation technology. To improve the techno-economic effectiveness, we should optimize the steam injection parameter and conduct scientific construction in connection with the geological conditions of oil deposit.Through estalishing conceptional model of steam stimulation exploit of heavy oil in the New Development Area,the article conducts numerical simulations to the production performance by using STARS simulator from Canada CMG Software company, optimize the steam injection parameter and finally establish the optimal develpment program
2023-08-18 17:15:273

求翻译~速度!!!

Oil as an important source of energy, the economy has a huge contribution to the development, known as black gold, industrial and economic growth in the blood of the engine. Years of continuous economic development of fast forward, oil consumption increase sharply, but for various reasons, China"s crude oil production has not increased significantly, resulting in increasing the oil gap, you need to import large quantities of crude oil from abroad, dependence on international oil market continues to deepen, so the volatility of international oil prices will inevitably cause some of the impact of inflation. Of the international oil price fluctuations on the impact of inflation on the authorities to stabilize the price level and ease inflationary pressure and the development of relevant policies taken an important reference value and reference. This article selected from 2001 to April 2011 the consumer price index in China and the international oil price data for quantitative analysis, by constructing VAR model, the cointegration test and Granger causality test results show that the international oil price is not the Currency Granger cause inflation, China"s inflation is Granger cause in international oil prices, and analyzes its possible causes, and finally came to the conclusion and put forward policy recommendations related to circumvent the international oil price fluctuations brought on China the potential risk of inflation.
2023-08-18 17:15:365

我需要一篇英文的分析报告

http://www.nbr.org/publications/analysis/pdf/vol16no3.pdf The analysis of corporate China, there is a lot of article inside and you can pick one
2023-08-18 17:15:523

lorenzo zoil是谁

参考http://baike.baidu.com/view/73532.htmZORIL探员的全名 Lorenzo Zoil取自温情电影《Loren"s oil》的谐音。Loren"s oil中文名是罗伦佐的油讲述的是一对父母不放弃希望最终发现治疗自己孩子疾病的一种油的故事
2023-08-18 17:16:003

oil change是什么意思?

e是换油的意思。“oil change”标识一般出现在汽车仪表盘上,当仪表盘上OIL CHANGE灯亮时,表示要尽快更换机油、润滑油,此为车辆的保养提示。实用场景举例1、Your car needs an oil change. 你的汽车要换油了。2、Our standard oil change is fifteen dollars and eighty - eight cents, including tax.我们换机油的标准价是15.88美元, 税包含在内。3、In fact the engine does sound quieter after the oil change. 果然换了油后机器的声音小了很多。4、When"s the last time you gave that car an oil change? 你上次是什么时候给车换机油的?5、The amount of time before I need an oil change.为汽车换一次发动机油能维持的时间。
2023-08-18 17:16:241

求详细解答:Huge amounts of oil

C
2023-08-18 17:16:421

API SM/SF SAE 15W-50机油是什么意思?

API是一个公司的名字,SM是机油的环保等级,SAE是一个标准,15w-50是粘度指数想问一下,你什么车用的了15w-50的机油????夏天还可以用用,冬天你启动以后,很长时间都打不上去机油,对车并不是很好。
2023-08-18 17:16:532

sl5w-30代表什么

黄壳sl5w-30这是一种机油的代号,高压缩比引擎该用那种油我们很主观的告诉你,黏度高的合成油,是唯一的选择。如5W/50、10W/50或15W/50。如果再加上你常将转数拉至红线不放,10W/60都可考虑 白壳,SG级;红壳,SJ级;黄壳,SL级;蓝壳(半合成),SL级;灰壳(合成),SL级。润滑性好,清洁度高,都很棒。 帮你看懂机油,无论是壳牌喜力还是其它品牌机油,其油桶上都有许多英文和数字,新手往往看得一头雾水。虽有修理工推荐,一般车主仍不得要领。其实只要了解简单的规则就可以看懂机油桶上的标志,为自己的爱车轻松选择合适的润滑油。 <br>  SAE是美国汽车工程师学会的英文缩写,SAE等级代表油品的粘度等级。SAE30、SAE40为单级油,SAE10W-30、SAE15W-40为多级油。其中,“W”前面的数字越小说明低温黏度越低,发动机冷启动时的保护能力越好;“W”后面的数字则是机油耐高温性的指标。以壳牌特级喜力机油(ShellHelixSuperMotorOil)为例,最典型的数据为SAE10W-40。 <br>  API是美国石油学会的英文缩写,API等级代表发动机油质量的分类。它采用简单的代码来描述发动机机油的工作能力。 <br>  API发动机油分为两类:“S”系列代表汽油发动机用油;“C”系列代表柴油发动机用油;当“S”和“C”两上字母同时存在,则表示此机油为汽柴通用型。如“S”在前,则主要用于汽油发动机。反之,则主要用于柴油发动机。 <br>  从“SA”一直到“SJ”,每递增一个字母,机油的性能都会优于前一种,机油中会有更多用来保护发动机的添加剂。字母越靠后,质量等级越高,国际品牌中机油级别多是SF级别以上的。例如,壳牌非凡喜力(ShellHelixPlus)是APISJ级,而壳牌红喜力机油(ShellHelixRedMotorOil)则是APISG级,这说明非凡喜力的质量等级要高于红喜力。 <br>二、<br>机油牌号识别<br>通常用粘度分类法和质量分类法对发动机油进行分类,国际上广泛采用的SAE(美国汽车工程师学会)分类法和API(美国石油学会)分类法,分别是两种分类方法的典型代表。<br>按SAE法分类机油,冬季用油有6种,夏季用油有4种,冬夏通用油有16种。冬季用油牌号分别为:0W、5W、10W、15W、20W、25W,符号W代表冬季,W前的数字越小,其低温粘度越小,低温流动性越好,适用的最低气温越低;夏季用油牌号分别为:20、30、40、50,数字越大,其粘度越大,适用的最高气温越高;冬夏通用油牌号分别为:5W/20、5W/30、5W/40、5W/50、10W/20、10W/30、10W/40、10W/50、15W/20、15W/30、15W/40、15W/50、20W/20、20W/30、20W/40、20W/50,代表冬用部分的数字越小,代表夏季部分的数字越大者粘度越高,适用的气温范围越大。<br>按照API质量分类法,发动机油分为汽油机油系列(即S系列)和柴油机油系统(即C系列),每个系列的油品按英文字母顺序排列,分为若干级别。<br>国外进口的和香港等地的发动机油,其包装上的标志由SAE粘度分类级别和API质量分类级别两部分组成。通常以SAE开头,后面标注出粘度代号;而按API质量分类的发动机油标号一般省略API,直接标注出质量等级代号。例如:标号为SAEl0WSD,表示粘度分类是SAEl0W,质星级别为API SD的冬季汽油机油;标号为SAE30SD,表示粘度分类是SAE30。质量级别为APISD的夏季汽油机油;标号为SAEl0W一30SD(或SAEl0W/30SD),表示粘度分类是既满足SAEl0W又满足SAE30冬夏通用汽油机油,其质量等级为API SD级。<br>国内在20世纪80年代以前,车用机油规格较少,品种单调,虽有传统分类规格,但缺乏统一的国家标准。目前我国制订的新的车用发动机油国家标准分类方法,包括GB7631.3—89国产内燃机油品质分类法和等效果用GAEJ300APR84发动机油粘度分类法两项内容。汽油机油分为EQB、EQC、EQD、EQE、EQF 五级,这五种汽油机油的使用特性及运用场合分别为:<br>EQB级——用于缓和条件下工作的货车或客车以及其它汽油机,具有一定的清洁性、分散性和抗氢化腐蚀性;<br>EQC级——用于中等条件下工作的货车或客车和其它汽油机,也可用于国外要求使用SC级油的汽油机,具有较好的清洁性、分散性、抗氧化性、抗腐蚀性和防透性;<br>EQD级——用于较苛刻条件下工作的货车或客车以及某些轿车的汽油机,并能满足装有曲轴箱强制换气装置的汽油机要求,以及国外要求使用SD和SC级油的汽油机,比<br>EQC级油具有更好的性能;<br>EQE级——用于苛刻条件下工作的轿车和某些货车的汽油机。并能满足装有尾气转化装置的汽油机要求,以及类似国外要求使用SD级油的汽油机,比EQD具有更好的性能;<br>EQF级——用于更苛刻条件下工作的轿车和某些货车的汽油机,也可用于国外要求使用SF、SE、SD和SC级油的汽油机,比EQE级油具有更好的性能。<br>国产发动机油的粘度分类新方法,已等效采用国际SAE粘度分类法。</p>三、<br>机油的分类及不同特征<br>朋友在选择机油时,经常只考虑价格,而忽略其性能,认为机油都具有相似的品质。造成这种误解的原因是大家对机油的分类及各类机油的不同特性了解较少。<br>机油的特性及区别<br>目前,机油分类体系以美国石油协会(APT)品质分类系统使用最为广泛,它是根据机油的工作能力,采用简单的代码来描述发动机机油的。其中“S”类用于汽油发动机,从“SA”一直到“SH”,每递增一个字母,机油的性能就会好过前一种许多,机油中就会有更多用来保护发动机的添加剂。<br>在机油的特性中,最重要的一点是它的粘度。对于那些低温时粘度小,高温时粘度大,能保证发动机在任何温度下都能正常润滑的机油,我们定义为多级机油。目前市场上的机油统分为矿物油和合成油,最高档的油属合成油。<br>一般高档车都选择合成机油。合成油比一般的矿物油具有较高的粘度指数,随温度转变而产生的粘度变化很少,因此在高温及严寒情况下,仍能维持适当的粘度,而提供合适的保护。另外,合成油因氧化而产生酸质、油泥的趋势小,在各种恶劣操作条件下,对发动机都能提供适当的润滑和有效的保护,因而具有更长的使用寿命。<br>机油的选择和使用可依据以下几个方面进行。<br>依品质来区别<br>机油因其基础油之不同可简分为矿物油及合成油两种(植物油因产量稀少故不计)。二者最大差别在于:合成油使用的温度更广,使用期限更长,以及成本更高;同样的油膜要求,合成油可用较低的黏度就可达成,而矿物油就需用相对于合成油较浓的黏度才可达到如此要求。在相同的工作环境里,合成油因为使用期限比矿物油长很多,因此成本较高,但是比较换油次数之后,并不比矿物油高多少。<br>(本文不涉及半合成机油)依黏度来区分<br>黏度是指流体(含气体及液体)在流动时它内部的摩擦力,即流滞阻力。一般润滑油都会提供在华氏40度及华氏100度时的黏度,40度是相对于冷车时的状况,而100度是高速运转或塞车时的情况。如果黏度太浓,所产生的阻力也相对提高因此会产生如下不利因素:一、影响冷车时引擎的启动这在低温时会更明显,例如在冬季时到雪山赏雪,20W/50就不如5W/40易起动;二、增加耗油量黏度高的机油阻力也高,会使引擎内部机件的运转产生更高的摩擦阻力,耗油量因而增加;三、增加启动时引擎的磨损引擎在一段时间没发动时,原本附着在上部的机油会流回油底壳,上部缺乏足够的机油来保护在启动状况下的引擎,如果机油黏度浓流动就慢,因此磨损的几率就会增加;四、如果机油黏度太浓则内部阻力较大,阻力会转换成热能,使机件操作时温度升高。<br>四、<br>电喷车用哪种机油<br>时下新出的汽车中,电喷车的比例越来越多,许多车主都以拥有电喷车为荣。的确,电喷车有不少优点,例如它的发动机功率就比化油器式发动机平均提高了15%—20%。不过,它对机油的要求,尤其是抗高氧化性等技术指标的要求也越来越苛刻。 无论是壳牌喜力还是其它品牌机油,其油桶上都有许多英文和数字,新手往往看得一头雾水。虽有修理工推荐,一般车主仍不得要领。其实只要了解简单的规则就可以看懂机油桶上的标志,为自己的爱车轻松选择合适的润滑油。SAE 是美国汽车工程师学会的英文缩写,SAE等级代表油品的粘度等级。SAE30、SAE40为单级油,SAE10W-30、SAE15W-40为多级油。其中,"W"前面的数字越小说明低温黏度越低,发动机冷启动时的保护能力越好;"W"后面的数字则是机油耐高温性的指标。以壳牌特级喜力机油(ShellHelixSuperMotorOil)为例,最典型的数据为SAE10W-40。API是美国石油学会的英文缩写,API等级代表发动机油质量的分类。它采用简单的代码来描述发动机机油的工作能力。API发动机油分为两类:"S"系列代表汽油发动机用油;"C"系列代表柴油发动机用油;当"S"和"C"两上字母同时存在,则表示此机油为汽柴通用型。如"S"在前,则主要用于汽油发动机。反之,则主要用于柴油发动机。从"SA" 一直到"SJ",每递增一个字母,机油的性能都会优于前一种,机油中会有更多用来保护发动机的添加剂。字母越靠后,质量等级越高,国际品牌中机油级别多是 SF级别以上的。例如,壳牌非凡喜力(ShellHelixPlus)是APISJ级,而壳牌红喜力机油(ShellHelixRedMotorOil)则是APISG级,这说明非凡喜力的质量等级要高于红喜力机油牌号识别通常用粘度分类法和质量分类法对发动机油进行分类,国际上广泛采用的SAE(美国汽车工程师学会)分类法和API(美国石油学会)分类法,分别是两种分类方法的典型代表。按SAE 法分类机油,冬季用油有6种,夏季用油有4种,冬夏通用油有16种。冬季用油牌号分别为:0W、5W、10W、15W、20W、25W,符号W代表冬季, W前的数字越小,其低温粘度越小,低温流动性越好,适用的最低气温越低;夏季用油牌号分别为:20、30、40、50,数字越大,其粘度越大,适用的最高气温越高;冬夏通用油牌号分别为:5W/20、5W/30、5W/40、5W/50、10W/20、10W/30、10W/40、10W/50、 15W/20、15W/30、15W/40、15W/50、20W/20、20W/30、20W/40、20W/50,代表冬用部分的数字越小,代表夏季部分的数字越大者粘度越高,适用的气温范围越大。按照API质量分类法,发动机油分为汽油机油系列(即S系列)和柴油机油系统(即C系列),每个系列的油品按英文字母顺序排列,分为若干级别。国外进口的和香港等地的发动机油,其包装上的标志由SAE粘度分类级别和API质量分类级别两部分组成。通常以SAE开头,后面标注出粘度代号;而按API 质量分类的发动机油标号一般省略API,直接标注出质量等级代号。例如:标号为SAEl0WSD,表示粘度分类是SAEl0W,质星级别为API SD的冬季汽油机油;标号为SAE30SD,表示粘度分类是SAE30。质量级别为APISD的夏季汽油机油;标号为SAEl0W一30SD(或 SAEl0W/30SD),表示粘度分类是既满足SAEl0W又满足SAE30冬夏通用汽油机油,其质量等级为API SD级。国内在20世纪 80年代以前,车用机油规格较少,品种单调,虽有传统分类规格,但缺乏统一的国家标准。目前我国制订的新的车用发动机油国家标准分类方法,包括 GB7631.3—89国产内燃机油品质分类法和等效果用GAEJ300APR84发动机油粘度分类法两项内容。汽油机油分为EQB、EQC、EQD、 EQE、EQF五级,这五种汽油机油的使用特性及运用场合分别为:EQB级——用于缓和条件下工作的货车或客车以及其它汽油机,具有一定的清洁性、分散性和抗氢化腐蚀性;EQC级——用于中等条件下工作的货车或客车和其它汽油机,也可用于国外要求使用SC级油的汽油机,具有较好的清洁性、分散性、抗氧化性、抗腐蚀性和防透性;EQD级——用于较苛刻条件下工作的货车或客车以及某些轿车的汽油机,并能满足装有曲轴箱强制换气装置的汽油机要求,以及国外要求使用SD和SC级油的汽油机,比EQC级油具有更好的性能;EQE级——用于苛刻条件下工作的轿车和某些货车的汽油机。并能满足装有尾气转化装置的汽油机要求,以及类似国外要求使用SD级油的汽油机,比EQD具有更好的性能;EQF级——用于更苛刻条件下工作的轿车和某些货车的汽油机,也可用于国外要求使用SF、SE、SD和SC级油的汽油机,比EQE级油具有更好的性能。国产发动机油的粘度分类新方法,已等效采用国际SAE粘度分类法。机油的分类及不同特征朋友在选择机油时,经常只考虑价格,而忽略其性能,认为机油都具有相似的品质。造成这种误解的原因是大家对机油的分类及各类机油的不同特性了解较少。机油的特性及区别目前,机油分类体系以美国石油协会(APT)品质分类系统使用最为广泛,它是根据机油的工作能力,采用简单的代码来描述发动机机油的。其中"S"类用于汽油发动机,从"SA"一直到"SH",每递增一个字母,机油的性能就会好过前一种许多,机油中就会有更多用来保护发动机的添加剂。在机油的特性中,最重要的一点是它的粘度。对于那些低温时粘度小,高温时粘度大,能保证发动机在任何温度下都能正常润滑的机油,我们定义为多级机油。目前市场上的机油统分为矿物油和合成油,最高档的油属合成油。一般高档车都选择合成机油。合成油比一般的矿物油具有较高的粘度指数,随温度转变而产生的粘度变化很少,因此在高温及严寒情况下,仍能维持适当的粘度,而提供合适的保护。另外,合成油因氧化而产生酸质、油泥的趋势小,在各种恶劣操作条件下,对发动机都能提供适当的润滑和有效的保护,因而具有更长的使用寿命。机油的选择和使用可依据以下几个方面进行。依品质来区别。机油因其基础油之不同可简分为矿物油及合成油两种(植物油因产量稀少故不计)。二者最大差别在于:合成油使用的温度更广,使用期限更长,以及成本更高;同样的油膜要求,合成油可用较低的黏度就可达成,而矿物油就需用相对于合成油较浓的黏度才可达到如此要求。在相同的工作环境里,合成油因为使用期限比矿物油长很多,因此成本较高,但是比较换油次数之后,并不比矿物油高多少。(本文不涉及半合成机油)依黏度来区分。黏度是指流体(含气体及液体)在流动时它内部的摩擦力,即流滞阻力。一般润滑油都会提供在华氏40度及华氏100度时的黏度,40度是相对于冷车时的状况,而100度是高速运转或塞车时的情况。如果黏度太浓,所产生的阻力也相对提高因此会产生如下不利因素:一、影响冷车时引擎的启动这在低温时会更明显,例如在冬季时到雪山赏雪, 20W/50就不如5W/40易起动;二、增加耗油量黏度高的机油阻力也高,会使引擎内部机件的运转产生更高的摩擦阻力,耗油量因而增加;三、增加启动时引擎的磨损引擎在一段时间没发动时,原本附着在上部的机油会流回油底壳,上部缺乏足够的机油来保护在启动状况下的引擎,如果机油黏度浓流动就慢,因此磨损的几率就会增加;四、如果机油黏度太浓则内部阻力较大,阻力会转换成热能,使机件操作时温度升高。电喷车用哪种机油时下新出的汽车中,电喷车的比例越来越多,许多车主都以拥有电喷车为荣。的确,电喷车有不少优点,例如它的发动机功率就比化油器式发动机平均提高了15%—20%。不过,它对机油的要求,尤其是抗高氧化性等技术指标的要求也越来越苛刻。安装三元催化转化器装置的电喷发动机对机油的要求还要严格。安装三元催化转化器必须具备两个条件,一是必须实行汽油无铅化,因为汽油中的铅会使催化剂中毒而失效;二是安装三元催化转化器的电喷车必须使用磷含量在0.12%以下的机油。如果机油中的磷含量过高,就会导致催化剂失效,使三元催化转化器的寿命缩短,排放的废气就无法降到最低。机油中的磷含量低于0.12%才能保证三元催化转化器的工作正常进行。而磷含量在0.12%以下的机油级别为APISH及其以上级别的油品。因此,如果你的车是电喷车且安装了三元催化转化器的话,在添加机油时应选用SH及SH以上级别的机油,这样才能保证您的汽车行驶起来顺利安全。机油质量的鉴别发动机的润滑系统,与人体的血液循环系统非常相似。人体离不开健康的血液,一旦失血过多或血液发生质变,生命将受到严重威胁,甚至失去生命。一台发动机工作质量的好坏与寿命的长短,在很大程度上取决于机油数量的多少和质量的优劣。健康的人体具备造血功能,能及时补充新鲜血液,而发动机却做不到这一点。另阻,对机油作用的理解和重视程度将起着决定性的作用,发动机的"生命"就掌握在你的手中。如国产EQ1091载货汽车,有的60万公里不大修,而有的几万公里就大修,存在着巨大的差别。这里面虽然也有其它因素的影响,但润滑是最主要的原因。下面着重介绍简陋条件下机油质量的鉴别和更换方法。机油质量的鉴别与选用(一)新机油质量的鉴别与选用目前,市场出售的机油并非那么"纯洁",以次充好,以劣充优的现象普遍存在。当你需要购买机油时,如果不具备质量鉴别和牌号识别能力,应请专门的技术员或经验丰富的技工帮助选择。1、观察机油颜色国产正牌散装机油多为浅蓝色,具有明亮的光泽,流动均匀。凡是颜色不均、流动时带有异色线条者均为伪劣或变质机油,若使用此类机油,将严重损害发动机。进口机油的颜色为金黄略带蓝色,晶莹透明,油桶制造精致,图案字码的边缘清晰、整齐,无漏色和重叠现象,否则为假货。2、识别机油牌号和试验粘度国产桶装机油分汽油机油和柴油机油两种。汽油机油按粘度分为HQ—6、HQ—6D、HQ—10和HQ—15四种牌号,气温低应选用牌号数字小的或带"D"字的机油,气温高应选用牌号数字大的机油。柴油机油按粘度分为HC—8、HC—11和HC—14号三种牌号,选用原则与汽油机相同。随着我国机械行业与国际标准逐步接轨,机油的牌号也逐渐与国际标准相适应,目前有些国产机油的牌号已使用进口机油标准牌号,具体选用方法与下述相同。进口机油以丰田纯牌机油为例:高级轿车应使用5W—40全天候机油,虽然价格较高,但它能确保高级轿车的润滑效果;增压柴油机应使用CD—30机油;一般车辆冬季使用SG10W—30机油,夏季使用SG—30机油。3、闻气味合格的机油应无特别的气味,只略带芳香。凡是对嗅觉刺激大且有异味的机油均为变质或劣质机油,绝对不可使用。(二)使用中机油的鉴别鉴别使用中机油的质量,是确定是否需要更换机油的依据。1、搓捻鉴别取出油底壳中的少许机油,放在手指上搓捻。搓捻时,如有粘稠感觉,并有拉丝现象,说明机油未变质,仍可继续使用,否则应更换。2、油尺鉴别抽出机油标尺对着光亮处观察刻度线是否清晰,当透过油尺上的机油看不请刻线时,则说明机油过脏,需立即更换。3、倾倒鉴别取油底壳中的少量机油注入一容器内,然后从容器中慢慢倒出,观察油流的光泽和粘度。若油流能保持细长且均匀,说明机油内没有胶质及杂质,还可使用一段时间,否则应更换。4、油滴检查在白纸上滴一滴油底壳中的机油,若油滴中心黑点很大,呈黑褐色且均匀无颗粒,周围黄色浸润很小,说明机油变质应更换。若油滴中心黑点小而且颜色较浅,周围的黄色浸润痕迹较大,表明机油还可以使用。以上检查均应在发动机停机后机油还未沉淀时进行,否则有可能得不到正确结论。因为机油沉淀后,浮在上面的往往是好的机油,这样检查的只是表面现象,而变质机油或杂质存留在油底壳的底部,从而可能造成误检。你该用什样的机油根据非正式的统计,国内汽车商品中单是机油就超过几十种品牌,只要你走一趟汽车百货店,全合成、半合成矿物油,SG、SH、真的看的眼都花了真不知如何挑起,真不知该用哪一种才适合。而商家所推荐的也几乎都是获利高的商品,真正好用、真正适用,倒也未必。我们从车厂的要求,机油制造厂的建议,一些国际知名车队的使用经验中整理出一些概念,希望你能从中找出你对机油的选择的依据。依品质来区别机油因其基础油之不同可简分为矿物油及合成油两种(植物油因产量稀少故不计)。二者最大差别在于∶合成油使用的温度更广,使用期限更长,以及长本更高;同样的油膜要求,合成油可用较低的黏度就可达成,而矿物油就需用相对于合成油较浓的黏度才可达到如此要求。换句话说,在相同的工作环境里,合成油用较低的黏度就可以达到保护引擎的目的。同样,在相同的工作环境里,合成油因为使用期限比矿物油长很多,因此虽然成本较高,但是比较换油次数之后,并不比矿物油高很多。(先声明∶本文不考虑所谓的半合成机油,子曰 ∶吾恶紫之夺朱)依黏度来区分黏度是指流体(含气体及液体)在流动时它内部的摩擦力,即流滞阻力。一般润滑油都会提供在华氏40度及华氏 100度时的黏度,40度是相对于冷车时的状况,而100度是高速运转或塞车时的情况。如果黏度太浓,所产生的阻力也相对提高因此会有些状况发生。如∶ 一、影响冷车时引擎的启动。这在低温时会更明显,例如在冬季时到玉山赏雪,2OW/50就会比5W/40来的不易起动。二、增加耗油量。黏度高的机油阻力也高会使引擎内部机件的运转产生更高的摩擦阻力,耗油量因而增加。三、增加启动时引擎的磨损。引擎在一段时间没发动时,原本附著在上部的机油会流回油底壳,上部缺乏足够的机油来保持在启动状况下的引擎,如果机油黏度浓流动就慢,因此磨损的机率就会增加。四、如果机油黏度太浓则内部阻力较大,阻力会转换成热,使机件操作时温度升高。依使用环境的气温来决定任何一家汽车厂几乎都会在车主手册中建议最合适的机油黏度。全世界对机油最挑剔的车厂当属保时捷,因为它是气冷式引擎,一切只靠机油来冷却,它内部的技术通告中,就对每一款送验(油品制造商要求)的机油作出结论。但是最基本的,它还是要求车主依使用环境的气温来决定用何种机油。以台湾而言,气温最低不低于摄氏五度,最高不曾高过摄氏四十度,在这范围内一般上,10W/40、10W/30都不适合,而合成油最少要5W/40以上。5W/30、10W/30都不适合。以上是在挑选机油时你必须了解的常识,以先用车环境的气温来决定机油黏度,再以预算来考虑用矿物油或合成油。纯代步用何种油如果汽车只是一种代步工具,而且你只有上下班时才会用的到,车狂实在很想劝你将车卖掉改搭公车算了,何必再为车龙增添尾巴,15W/40的一般矿物油就够你用了。如果你想节省汽油费用,全合成的5W/40可以满足你的要求,因为它的流动快,还可减少你启动时引擎的磨损。喜欢拉转数应该用何种油引擎转数越高,相对的温度也会越高,因此就应该用黏度大一点的机油。如5W/50、10W/50或15W/50。但是前面提过黏度越高,相对的阻力就越大,引擎性能多少会削弱一点,因此合成油就可弥补这缺点。因为合成油可以用较低的黏度,来满足相对于矿物油必须用高黏度才能符合的工作条件。但是这时你要考虑车辆本身的引擎容积输出,如两千以下的四缸车,转数一拉后来快就到红线,或许稍浓一点的机油(例如10W/40相对于5W/40),会比较合适。因为汽缸和活塞环之间的空隙是由机油来密封的,黏度高的密封效果当然比较好,三千以上的,六缸以上的,这类车引擎转数通常比较不会上到红线(当然也有例外),因此就比较不必那讲究。另一种决定黏度的方式是,跑一阵子以后注意听引擎气门声,如果"达达"声很明显,那你就应该将黏度增加。
2023-08-18 17:17:042

中国石化 的英文介绍

中国石化China Sinopec
2023-08-18 17:17:241

in order not to.是什么意思

是对in order to 的否定,该短语是固定搭配,是为了不的意思。
2023-08-18 17:17:342

英语:rise raise的区别及各自用法

要求不少.可小气鬼一个
2023-08-18 17:07:372