谁能给我一张高清晰的A380飞机图片啊，不胜感激~~

teachers 教师; airliners 大型客机; almoners 医院社工; announcers 广播员，播音员; beginners 初学者; chargers 充电器; dispensers 药剂师,配药员; employers 雇用者 扩展资料 　　复数的用法： 　　1.一般情况加s； 　　2. 以s,x, sh, ch结尾加es； 　　3. 以辅音字母+y结尾，变y为i再加es； 　　4.以y结尾的专有名词或元音字母+y结尾的名词变复数时，直接加s； 　　5.以o结尾的名词，有些加词尾-s，有些加-es，有些加-s或-es均可； 　　6.以f，fe结尾，去f，fe变ves。

直升机helicopter无人机UAV(unmanned aerial vehicle)

通过飞机的注册号查看飞机服役的信息是一种可行的方法，你可以访问一些特定的网站来获取这些信息。1. 访问 Flightradar24 网站（www.flightradar24.com），这是一个全球性的航班跟踪网站，可以让你输入飞机的注册号来查看该飞机的实时位置和飞行信息。需要注意的是，这些网站上提供的信息可能并不总是准确的，所以你需要自行判断其可信度。同时，这些网站的使用可能需要你注册并登录，以及支付一定的费用。

国航机队 空中客车A319 33架 空中客车A320 5架 空中客车A321 3架 空中客车A330-200 20架 空中客车A340-300 6架 波音737-300 38架 波音737-700 20架 波音737-800 47架 波音757-200 13架 波音767-200 3架 波音767-300 7架 波音777-200 10架 波音747-400 12架 波音787-8 15架（订购中）

1. 环境的 [in,vaiu0259ru0259n"mentl]2.资源 [ri"su0254:s]3.保存[pri"zu0259:v]4.饥饿 ["hu028cu014bgu0259]5.礼物["preznt]6.有经验的 [iks"piu0259riu0259nst]7.艰难 ["hɑ:du0283ip]8.战争 [wu0254:]9.电 [,ilek"trisiti]10.超音波的 ["sju:pu0259"su0254nik]11.大型客机 ["u025bu0259,lainu0259]12.13.14.模型15.1617.发展中的18.

就是空中客车320-100型飞机,座位160人左右,单走道

www.airliners.net我经常去这个国内有一个飞友也是满不错的，只是最近这段时间好像是服务器有点问题，不能上了

选B.A.convince： 和人联系时的用法一般都是被动，be convinced that 如：Sally is convinced that she is the prettiest girl in the class.B.anticipate： 预期/见，预料到 anticipate (doing) sth. / anticipate that 从句 如：We anticipate that she will vote for the plan.我们预料到她会投赞成票。 C.resolve： 解决：resolve disputes 解决纠纷； 决心做某事：I resolve to contribute more to the society. 决心为社会做出更大贡献D.assure： 确保，保证，使确信 因为本身就有使动意味，故不用被动 如：I can assure you that he is reliable.我向你担保他绝对可靠。本句意思应该是：人们预言直升飞行运输会像客机一样运送上千万乘客…… Hope these will help~^_^~

两个，加拿大航空和国泰航空。温哥华和多伦多两地有直飞。

777-200 同 777-200ER 系机身大细同外型上系完全一样， 的确冇办法从外观上分辨 Basic Dimensions Wing Span Overall Length Tail Height Interior Cabin Width Diameter 777-200 199 ft 11 in (60.9 m) 209 ft 1 in (63.7 m) 60 ft 9 in (18.5 m) 19 ft 3 in (5.86 m) 20 ft 4 in (6.19 m) 777-200ER 199 ft 11 in (60.9 m) 209 ft 1 in (63.7 m) 60 ft 9 in (18.5 m) 19 ft 3 in (5.86 m) 20 ft 4 in (6.19 m) 不过 777-200LR o既 Wing Span 就比 777-200/-200ER 长左几尺， 垂直尾翼亦高左一尺... Basic Dimensions Wing Span Overall Length Tail Height Interior Cabin Width Diameter 777-200LR 212 ft 7 in (64.8 m) 209 ft 1 in (63.7 m) 61 ft 9 in (18.8 m) 19 ft 3 in (5.86 m) 20 ft 4 in (6.19 m) 咁尾翼高果一尺咁大把真系非常难睇得出， 不过 Wing Span 长左果几尺其实系一对 Wingtap， 呢对系同 777-300ER 一样o既 "raked wingtip" 图片参考：aviation-fr.info/guide/images/b777/aile 下面呢张系 777-200ER airliners/open.file/1285000/L/ 呢张系 777-200LR airliners/open.file/1276540/L/ 睇清楚翼尖就可以分辨出 777-200/-200ER 同 777-200LR 参考: Boeing airliners 基本上没有方法 因为大家的分别只是航程不同 油箱增加 只能从注册编号及航空公司上分办出来 用外型绝对分不出来的

a哎呀,你们怎么老是问这问题你又不是间断

没有你说的很多现在只有俄罗斯KA50，KA52武装直升机是同轴反转螺旋浆这套系统能提供更好的飞行性能但技术很复杂维护也很困难在讲究维护简单批量装备部队的今天即使俄罗斯也没有正式装备这两种直升机

民航网站不说了，军用飞机网站强烈推荐空军世界。http://www.airforceworld.com/

虽然这个问题我没有深入的研究过，但是我觉得可能是和每个飞机的型号不一样，还有所使用的发动机或者是燃油机不一样。

　　大多数指一种、一类、一群或一数的几乎全部或大部分。那么你知道大多数用英语怎么说吗?下面来学习一下吧。 　 　大多数英语说法1： 　　most of 　　 大多数英语说法2： 　　great majority 　 　大多数的英语例句： 　　大多数客人都会穿晚礼服。 　　Most of the guests will be wearing black tie. 　　大多数的年轻妇女都有生儿育女的生理需要。 　　Most young women feel a biological need to procreate. 　　他的大多数顾问都弃他而去。 　　He has been deserted by most of his advisers. 　　大多数消费者似乎都不相信经济衰退已经过去。 　　Most consumers seem unconvinced that the recession is over. 　　大多数低脂酸奶每100克约含40卡热量。 　　Most low-fat yogurts are about 40 calories per 100g. 　　这比大多数亚音速飞机的飞行高度高20,000英尺。 　　This is 20,000 feet higher than most subsonic airliners. 　　我想我们大多数人无论如何都不想如此仔细地去读报纸。 　　I think most of us don"t want to read what"s in the newspaper anyway in such detail. 　　大多数人养狗是为了有个伴儿。 　　The majority of people own a dog for companionship. 　　大多数时间他们通常都泡在一起。 　　They usually hung around together most of the time. 　　大多数商品都有售，但是价格极高。 　　Most goods are available, but at a price. 　　大多数人依然支持这份条约。 　　Still, a majority continue to support the treaty. 　　这里的大多数人都很正派。 　　The majority of people around here are decent people. 　　我们食用的大多数食物对鸟类都无害。 　　Most foods that we eat are safe for birds. 　　他们中大多数侨民是爱国主义者。 　　Most emigrants among them are patriots. 　　大多数非洲人是黑人。 　　Most African people are black people. 　　在大多数国家，罂粟被禁止种植。 　　Poppies are not allowed to be planted in most countries. 　　这个班的大多数孩子都十五岁。 　　Most students in this class are fifteen. 　　大多数孩子都喜欢吃糖果，但也有一些例外。 　　Most children like sweets, but there are some exceptions. 　　大多数人痛恨虐待儿童。 　　Most people abhor cruelty to children. 　　大多数实验(原意为“这些实验中的大多数”)已按时完成。 　　Most of the experiments have been finished in time. 　　大多数女性麻烦是她们和大多数男人之间的麻烦。 　　The trouble with most women is their trouble with most men. 　　一般驱动程序应当在大多数情况下且针对大多数数据库方案运行。 　　The generic drivers should work in most cases and for most of the database schema. 　　只要大多数人还乐意保留君主制，废除它的主张就是痴人说梦。 　　As long as most people are happy to have the monarchy, the abolitionist position is an arrogant fantasy. 　　一个已过中年的男子，大多数成员都不记得他干这行有多久了 　　A man of mature years who had been in the job for longer than most of the members could remember 　　大多数有关法国外来移民的文学作品都是从法国人的视角写的。 　　Most literature on the subject of immigrants in France has been written from the perspective of the French themselves. 　　当西欧的大多数国家正从经济衰退中缓慢复苏时，他们并没有预见到法国的通货膨胀率会升高。 　　They had not foreseen the higher inflation in France when most of Western Europe was crawling out of recession.

首先肯定它是747，至于那个说是787的top20，Top Gear 从6年前就有那架飞机，当时哪来的787，而分段两层的甲板座舱，说明这是747，第二层长度明显比400型短，所以这是200，具体型号为747-236，属于分支型号，是应用了B47和B52 的技术，可以看下这个 http://www.airliners.net/photo/1070481/

但是，在美国航天局航天中心的科学家已经开发建成发射的客机，军用飞机和航天飞机的挡风玻璃，所有在其最高速度行驶死鸡一支枪。鸟类经常会发生意外时，他们攻击机。迄今为止还没有任何可靠的方法，避免鸟类被发现。但是，在美国航天局航天中心的科学家已经开发建成发射的客机，军用飞机和航天飞机的挡风玻璃，所有在其最高速度行驶死鸡一支枪。这样做是为了重现鸟发生碰撞的事件频频发生，以测试挡风玻璃的力量。火车与鸟类有时会遇到类似的问题。这并不令人感到意外，当英国工程师对枪听说，他们急于测试其新的高速列车的挡风玻璃它。作了安排借用枪。这是飞越大西洋和伦敦附近设置非常谨慎了。但是，当枪被解雇，工程师站在惊讶，鸡飞进了盾牌，砸碎它，通过工程师的椅子去，并在车后降落。惊恐，英国派出美国宇航局的灾难性实验的结果，随着新的挡风玻璃的设计。他们乞求美国科学家把他们避免挡风玻璃粉碎他们的建议。美国航天局审查了彻底测试，并且一个建议：“解冻的鸡”这位网友，这是Google翻译的，不能确定它百分之百地正确～～

国内一般上民航社区的民航贴图http://bbs.feeyo.com/index1.htm或民航图库http://pic.feeyo.com/

Most Potent Geomagnetic Storm Hits Earth 强烈的太阳磁暴袭击地球 　　DENVER - The most powerful geomagnetic storm possible walloped the Earth early Wednesday, knocking out some airline communications but apparently causing no large power outages or other major problems. 　　丹佛 － 烈的太阳磁暴于本周三开始袭击地球，并对某些航空通讯联系产生了干扰，但没有出现大规模电力供应中断或其他重大问题。 　　geomagnetic，地磁的。geomagnetic storm也叫 magnetic storm，.磁暴（因太阳黑子活动而引起的地球磁场的大扰动）。 　　Wallop，To beat soundly; thrash.很响地打；连续拍打。也可作名词讲has a punch that delivers a wallop.具有一个能够有力的猛击的冲头。 　　knock out是个常用词组，意思很多。常用来在体育运动中指To defeat （a boxing opponent） by a knockout.拳击比赛中的对手；或者指To render useless or inoperative，使无用，使失去效能：The storm knocked out the telephones.风暴使电话中断。本文中用的就是这个意思。在非正式用语中，意思是To exert or exhaust （oneself or another） to the utmost: 尽心尽力。knocked herself out to be ready on time.为了及时作好准备她竭尽全力。 　　The storm, the most disruptive to hit Earth since 1989, was unleashed by the fourth-most powerful solar flare ever seen, NASA said. The gigantic cloud of highly charged particles hurled from the sun posed a threat to high frequency radio communications, satellite navigation systems and television broadcasts. Continued turbulence on the sun remains a concern for the next week, space forecasters say. 　　美国国家航空航天局说，这次太阳磁暴是由迄今所见烈四个太阳耀斑释放，对地球的袭击也是自1989年以来有破坏性的一次。太阳高速喷出的巨大粒子云团对于高频无线电波通讯、人造卫星航空系统和电视广播传输都造成了威胁。航空预报员说，太磁暴的旋涡流将一直持续到下周。 　　solar flare，A sudden eruption of hydrogen gas on the surface of the sun, usually associated with sunspots and accompanied by a burst of ultraviolet radiation that is often followed by a magnetic disturbance. 太阳耀斑，太阳表面氢气的突然爆发，经常和太阳黑子有关并伴有紫外线辐射的爆发，从而导致磁干扰。 　　Hurl，To move with great speed, force, or violence; hurtle. 快速移动快速、用力或猛地运动；猛冲。He hurled the brick through the window. 他用力把砖头从窗户投进去。 　　turbulence 指的是An eddying motion of the atmosphere that interrupts the flow of wind. 湍流打断风的运动的极不规则的大气运动。 　　The biggest immediate effect was the blackout of high-frequency voice-radio communications for planes flying far northern routes. But airliners in an emergency could still communicate through VHF contact with another aircraft or military monitoring station, said Louis Garneau, a spokesman for the company that handles Canada"s civil aviation navigation service. 　　太阳磁暴最严重的直接影响是北部航线飞机的高频声波通讯系统会发生中断。负责处理加拿大民用航空航海事务公司的发言人路易斯加纳表示，即使发生紧急情况，航班仍然可以通过特高频与其他飞机或军事检测电台联系。 　　blackout 在本文中指的是Lack of illumination caused by an electrical power failure. 照明不足由电力缺乏引起的照明不足。常用于指（暂时）失去知觉，He had had a blackout after the accident.事故发生后,他晕过去一阵子。in an emergency，在紧急的时。 　　VHF是Very High Frequency的首字母缩写， 甚高频（30VHF 300兆赫）。

一般民航机的飞行高度约为10 000公尺。 相信大家也十分欣赏在飞行时望向窗外的云海景象。通常一般的云层对飞行中的飞机影晌不大，因为在一般民航机飞行高度(通常在二、三万呎)的云层巳经十分稀薄。不过当有雷暴云团产生时，云层便发展得很高，而和雷暴相关连的坏天气，例如，闪电、雷击、积冰和冰雹等现象都对飞行有一定的危险。不过，现今的飞机设备先进，飞行人员又可以透过气象预报去了解坏天气出现的地方，从而作出准备。如有必要，飞机可以改变航道，以避开最恶劣的天气情况。所以，雷暴为航机带来的危险是可以避免的。 o/education/newsarticle/000531 飞行器在美国堪萨斯州萨莱纳机场起飞，当爬升至15240公尺高度（一般民航机高度为10668公尺），挤身在细小驾驶舱的福塞便可顺随喷射气流滑行，有如搭便车般轻松又省油。 singpao/20050222/international/678061 2007-03-23 18:27:35 补充： 英国帝国理工学院的科学家罗伯特。诺兰等人经过研究，提出了一个解决方案-- 降低民航机飞行高度。他们认为，视天气情况而定，当飞机的飞行高度从33000 英尺降低到24000-31000英尺之间时，将不会产生凝结尾迹。t7online/feature/news231002 2007-03-23 18:33:12 补充： 参考以下网址的附图：飞机飞行的高度就在「对流层」顶。ihouseedcity/~hm1203/atmosphere/air No cruising at 40 000ft isn"t rare at all. In fact the majority of modern jet airliners is certified to fly above 40 000ft and it"s particularly mon on long-haul operations where flying at higher altitude will achieve better fuel consumption and engine performance. For example from Sydney to Hong Kong Cathay"s A333s typically operate at the range of 35 000 to 41 000ft. With the initial altitude at 33-35 000ft they gradually climb to 39-41 000ft at mid-way depending on the direction. Then all the way to the top of descend point. But most jet operations are constrainted below 45 000ft due to the extra-terrestrial ionising radiation issue. The only regular public trport operations of jet airliners at the altitude above 45 000ft in history were operated by Concorde due to the need of leaned air density and more stabled air to achieve supersonic performance. For the highest flight altitude achieved by manned aircraft it"s depended on how you define an aircraft. For manned vehicle laterally all spacecraft including space shuttle fly above 380km. But since their flight dynamic is achieved by the use of external booster (in the other words rockets) at the initial flight stage (that me the launch) and being held on the orbit (i.e. level flight) by the inertial force (so no thrust) which maintains the vehicles at the Escape Speed (in plain words the speed to get away from a pla) it doesn"t count as an aero-dynamic vehicle (in our words airplane). The recorded manned airplane operation with the highest altitude achieved is the SpaceShip One flight on 21st June 2004 at the altitude of approximately 100km. 航程超过2小时的 民航机的飞行高度一般是11000公尺 航程在2小时以内的 大多是7500~ 10000公尺之间. 飞机发行的是大气层的最低层 称为对流层 高度约为14公里. 10000公尺等于10公里.

海航把所有员工划分为M序列和B序列，M序列为管理人员。

737:前2后2747:前2后16757:前2后8767:前2后8777:前2后12图片到www.airliners.net查.全有

「站在巨人的肩膊上」: 我想说你的理论完全是错的. 第一: 世界上只有极少的单引擎喷射飞机. 所有一型民航飞机都是双引擎的 这是基于安全考量. 第二: 飞机在地面不是靠机尾的方向舵来转向 而是靠机鼻轮来转向的(除非是Tail Dragger的尾轮. 这是因为飞机在地面滑行时的速度 根本不足以产生足够的空气动力来让方向舵变得有效. 第三: 正常的情况下飞机根本不会利用引擎的输出来控制转弯 因为根本效率不高 喷射引擎的反应极慢 根本没有可能提供地面时滑行需要的灵活性. 第四: 喷射引擎其实是结构最简单的动力装置. 要将向后喷出的热气体转为向前 只需要一个改变喷射方向的装置 就如你家的冷气机一样. 引擎的逆喷装置 其实只是一组活动挡板 改变挡板的角度 就可以将本来向后的热气改为向前. 第五: 的确不是每一种飞机都有飞机梯 但事实上有些民航飞机的确是有随机的飞机梯 如B737和A320 就有接合梯收在机门底. 这是给廉价航空公司的一个option. 大一些的飞机的确可以倒后行 只是在极大多数的情况下都不会 这有几个原因: 1. 逆喷的气流因为会改变方向 较难预测 故可能会对地面人员和设备造成伤害. 2. 飞机的引擎一般都在翼下 较接近地面 使用逆喷装置的话 有可能吸入地面的杂物 造成破坏. 故一般只有高置的引擎会使用逆喷装置 如DC-9 B727.因为引擎在机尾较高处. 3. 在很多停机坪都禁止使用引擎 就更不可能使用逆喷装置来倒车. 4. 使用引擎会比拖车用更多燃料 而且损耗引擎 故尽可能都用拖车. 但滑行至跑道还是会用引擎动力 因为引擎是要一定时间暖车. 你个答案都唔多贴题wor * Planes can go backwards. I have seen a RAAF/USAF C-17 do a very short landing on a runway engaging full reverse thrust - after the plane stopped the captain continued to use the reverse thrust and the plane started to move backwards. on the runway (It was in a military airshow in Sydney last year). * Wheels on planes are typically not powered therefore they cannot make the plane move forward or backward. * On the ground plane uses their engines to generate thrust. Since the engines are designed to make the plane go forwards they provide much better thrust forwards than they can backwards. * A lot of civil airliners (ie. big jets) have reverse thrust - they are used main after landing to slow down the plane especially on short runways. * In order to make the plane go backwards the plane must use reverse thrust. However that greatly reduces the air that goes into the engine making it inefficient and can potentially overheat the engine. * In addition the pilot cannot see behind the plane well making it potentially dangerous to make a plane go backwards using reverse thrust. 都比captain wu同olga说明了 咁清楚都唔洗补充... 再简单啲讲 机轮设计上只能滑行 不能产生前后动力的. 好简单！飞机的D设计系唔会有多余的东西带上天空，可以减ge o野都会减晒，至于点解，系因为多带一样o野上天空，会重多一D，飞机燃油用多D，乘客反而小o左，咁你话飞机会唔会放张上落机用ge梯系度丫？同一道理佢又点解会安装倒后装置系机上呢？就算系飞机落到地面，想向前或是转方向，它都只是用飞机引擎造动力罢了！ 图片参考：.yimg/i/icon/16/2 2007-01-22 00:04:39 补充： 楼主你问得好，答案就系滑行，当一架单引擎ge喷射客机，在地面前进是用引擎减少推力向前推的，如果想转方向的话，就用尾翼的方向舵改变方向。双引擎的话，前进是一样的，但改变方向时，就主要是改变左右引擎的推力来达成的，如向左转，再减少左手便的引擎推力，咁架机就会向左转弯了，也是最多航机所使用的方法，因为国际规定飞航国际航线的飞机一定要有两个或以上的引擎的。 2007-01-22 00:20:01 补充： 飞机的喷射引擎系很难开倒车的，因为引擎的前方是设计成吸入及初步压缩冷空气的，而尾部是喷射高压的热气体，而且不用我说你都知道它的构造是相当复杂的，唔会设计多余的构造来达成开倒车的用途的。 参考: 自已 飞机系设计0黎向前飞，而飞机 even 0系地上 taxi 都系用 engine 0既 thrust，并冇动力系经 gear 传到地上。 但技术上，部份喷射机系可以用 reverse thrust 倒后行。 不过系实际上唔会咁做，一0黎浪费能源，二0黎会对 ground 其他人有危险。 参考: 自己 因为本身无向后嘅动力

The hijackers intentionally crashed two of the airliners into the Twin Towers of the World Trade Center in New York City, killing everyone on board and many others working in the buildings. Both buildings collapsed within two hours, destroying nearby buildings and damaging others. The hijackers crashed a third airliner into the Pentagon in Arlington, Virginia, just outside of Washington, D.C. The fourth plane crashed into a field near Shanksville in rural Pennsylvania, after some of its passengers and flight crew attempted to retake control of the plane, which the hijackers had redirected toward Washington, D.C. There were no survivors from any of the flights.不止六句，参考资料中国屏蔽了所以我给不了链接给你

wreckage，英语单词，主要用作名词，作名词时译为“（失事船或飞机等的）残骸；（船只等的）失事”。短语搭配：1、Bog Wreckage腐沼残迹2、aircraft wreckage飞机残骸3、Underwater wreckage水下残骸4、floating wreckage漂浮残骸 ；漂浮着的残骸；浮动失事船残骸破片5、ship wreckage船舶残骸6、impact wreckage碰撞破坏7、plane wreckage飞机残骸8、no wreckage未找到残骸双语例句如下：1、We will now try to reassemble pieces of the wreckage.我们现在会尽量把残骸重新组合起来。2、For three weeks a big operation went on to recover the wreckage from the sea bed.一项大规模行动持续3周以从海床寻找残骸。3、Workers are sifting through the wreckage of the airliners amid growing evidence that the disasters were the work of terrorists.在越来越多证据证明这些灾难是恐怖分子所为的同时，工人们正在仔细检查那些客机的残骸。

写作思路：围绕文章的中心思想，结合自身感受得描述，正文：On September 11, 2001, four passenger planes flying above in the United States, however, the four planes by the robbers are silent robbed. When Americans just ready to start a day"s work, New York"s world trade center, continuously happen, crash of the world trade center collapsed, skyscrapers(摩天大楼), crashing into ruins, causing more than 3000 people were killed.2001年9月11日,恐怖分子抢劫架飞机撞击美国纽约世贸中心和华盛顿五角大楼的历史。2001年9月11日，四个客运飞机上面在美国，然而，四架飞机被强盗抢劫是沉默。当美国人刚刚准备开始一天的工作，纽约的世界贸易中心，不断发生，崩溃的世界贸易中心倒塌，摩天大楼，撞入废墟，造成超过3000人死亡。The whole the United States have shocked the world, people who stuck into extreme panic has caught the world"s shocked, this is in the history of the United States of the most serious disasters.整个美国震惊了世界，人们陷入了极度的"恐慌已经引起了全世界的震惊，这是美国历史上最严重的灾难。A plane from Boston to New York at the American Airlines Boeing 767 (11) Flight number flight being held and crashed into the world trade center in New York Manhattan (曼哈顿)south building, the plane "torn" the building, is apart from the ground in about 20 layer a smoke, and cause an explosion.一架飞机从波士顿到纽约的美国航空公司波音767(11)航班号飞行被关押，撞向世界贸易中心在纽约曼哈顿南方建筑，飞机“撕裂”，距地面约20层烟,并引发一场爆炸。And a small plane with great speed to the north of the world trade center building. The plane crashed into the side of the building, through the other side, and cause huge explosion. Two bombs may cause the thousands of. injuries and deaths.和一架小型飞机以极大的速度向北的世界贸易中心大楼。飞机撞上大楼的一侧，另一侧，并导致巨大的爆炸。两枚炸弹可能导致成千上万的。受伤和死亡。

问题一："直升机"用英语怎么说 helicopter 英 [?hel?k?pt?(r)] 美 [?hel?k:pt?(r)] n.直升机，直升飞机 vt.用直升飞机载送 vi.乘直升飞机 例句： The helicopter was returning from a reconnaissance mission 直升机完成侦察任务后正在返航。 问题二：各种类型的飞机用英语怎么说？比如说直升机，无人机等等 helicopter- 直升机 Cargo Aircraft-载货飞机 Jets－喷气式飞机 Turboprops－涡轮机螺旋桨式飞机 Airliners－客机 bomber-轰炸机 jet fighter－喷气式战斗机 fighter plane-战斗机 torpedoplane -鱼雷机 spy plane-侦察机 attack plane -强击机 unmanned aerial vehicle -无人机 early warning airplane-预警机 anti submarine warfare air plane-反潜机 interceptor -截击机 问题三：直升机的英语怎么说 飞机 aircraft; plane; airplane; aeroplane [例句] 一架轻型飞机昨天在一个高尔夫球场的球洞区紧急降落了。 A light aircraft crash-landed on a putting green yesterday. 问题四：""直升机""用英语怎么说? copter n. 直升机 helicopter n. 直升(飞)机, 直升机 词性变化供 helicopter vt. 用直升飞机载送 helicopter *** . out of the sea 用直升飞机救某人出海(指海上遇难人员) helicopter the President to London 用直升飞机送总统去伦敦 helicopter vi. 乘直升飞机 The president helicoptered to California yesterday. 总统昨天乘直升飞机赴加州。 特殊用法 dual-rotor helicopter 双旋翼式直升飞机 flying-crane helicopter 起重直升飞机 intermeshing rotors helicopter 交叉旋翼式直升飞机 pulsejet helicopter 脉动喷气式直升飞机 问题五：遥控直升机用英语怎么说 remote controlled helicopter 问题六：我们还乘坐了直升飞机英语怎么说，谢谢 we have taken the helicopter.

问题一："直升机"用英语怎么说 helicopter 英 [?hel?k?pt?(r)] 美 [?hel?k:pt?(r)] n.直升机，直升飞机 vt.用直升飞机载送 vi.乘直升飞机 例句： The helicopter was returning from a reconnaissance mission 直升机完成侦察任务后正在返航。 问题二：各种类型的飞机用英语怎么说？比如说直升机，无人机等等 helicopter- 直升机 Cargo Aircraft-载货飞机 Jets－喷气式飞机 Turboprops－涡轮机螺旋桨式飞机 Airliners－客机 bomber-轰炸机 jet fighter－喷气式战斗机 fighter plane-战斗机 torpedoplane -鱼雷机 spy plane-侦察机 attack plane -强击机 unmanned aerial vehicle -无人机 early warning airplane-预警机 anti submarine warfare air plane-反潜机 interceptor -截击机 问题三：直升机的英语怎么说 飞机 aircraft; plane; airplane; aeroplane [例句] 一架轻型飞机昨天在一个高尔夫球场的球洞区紧急降落了。 A light aircraft crash-landed on a putting green yesterday. 问题四：""直升机""用英语怎么说? copter n. 直升机 helicopter n. 直升(飞)机, 直升机 词性变化供 helicopter vt. 用直升飞机载送 helicopter *** . out of the sea 用直升飞机救某人出海(指海上遇难人员) helicopter the President to London 用直升飞机送总统去伦敦 helicopter vi. 乘直升飞机 The president helicoptered to California yesterday. 总统昨天乘直升飞机赴加州。 特殊用法 dual-rotor helicopter 双旋翼式直升飞机 flying-crane helicopter 起重直升飞机 intermeshing rotors helicopter 交叉旋翼式直升飞机 pulsejet helicopter 脉动喷气式直升飞机 问题五：请问一下大家直升机用英语怎么说 helicopter 问题六：遥控直升机用英语怎么说 remote controlled helicopter 问题七：直升机的英文有helicopter和chopper，两者有什么不同？分别用在哪些方面？ 两个词都有：用直升机运送和乘直升机飞行，这两个意思。helicopter还有个名词意思：直升机，在英语的使用习惯中，正式说直升机这个词一般是使用helicopter。chopper也有个名词意思：斩波器、斧子、斧头、切碎机，也有“直升机（有切碎机这个意思就明白为什么直升机了）”的意思，不过一般是用作口语，在正式的说法中是使用helicopter。 问题八：我们还乘坐了直升飞机英语怎么说，谢谢 we have taken the helicopter.

www.airliners.net我经常去这个国内有一个飞友也是满不错的，只是最近这段时间好像是服务器有点问题，不能上了

更新1: 我需要大量资料做报告 所以得的话 比多d网址我都得. Actually the plane applied the Bernoulli"s Principle The following is the detail... Wings We shall start by looking at a wing cross-section designed as it was meant to be used - to produce lift on an aeroplane. As the wing moves through the air it splits the air into o streams. One stream travels over the wing and one travels under the wing. Because of the way the wing is shaped the distance across the top of the wind is greater than the distance across the bottom of the wing. This causes the air flowing over the wing to move faster than the air flowing under it. As we have seen above Bernoulli"s equation states that a faster moving fluid has a lower pressure than a slower moving one. This me that the faster moving air above the wing has a lower pressure than the air flowing under it. This pressure difference causes the wing to move towards the area of low pressure i.e. in an upwards direction. This phenomenon is known as lift and this is what keeps planes from falling from the sky. The lift on a wing is proportional to its" area - the larger the area the more lift is produced. An inverted wing is used on racing cars. An inverted wing is basically a standard wing fitted upside-down. This me that the lift that is produced is in the opposite direction to a standard wing - this type of lift is known as ‘negative lift" otherwise known as downforce. This downforce forces the car onto the road which in turn forces the tyres down onto the road with a lot more force than the weight of the car alone. The grip that tyres can produce increases roughly in a linear manner with increasing load (downforce in this case). Therefore with the increase in downforce the load on the tyres increases meaning that the grip the tyres have is increased proportionately. This allows the drivers to go faster around corners than in a car without the downforce and produces significant time savings. Usually o wings are used - one at the rear and one at the front. This is done to balance the forces so that the grip is roughly equal at both ends of the car otherwise the handling of the car would be terrible especially at higher speeds when maximum downforce is achieved. 参考: forumula1/2006/f1/features/car-design-technology/aerodynamics Fixed-wing aircraft include a large range of craft from *** all training and recreational aircraft to large airliners and military cargo aircraft. Some aircraft use fixed wings to provide lift only part of the time and may or may not be referred to as fixed-wing. The term also embraces aircraft with folding wings that are intended to fold when on the ground. This is usually to ease storage or facilitate trport on for example a vehicle trailer or the powered lift connecting the hangar deck of an aircraft carrier to its flight deck. It also embraces "variable geometry" aircraft such as the General Dynamics F-111 Grumman F-14 Tomcat and the Panavia Tornado which can vary the sweep angle of their wings during flight. There are also rare examples of aircraft which can vary the angle of incidence of their wings in flight such the F-8 Crusader which are also considered to be "fixed-wing". An F-16 Fighting Falcon a military fixed-wing aircraft Two necessities for all fixed-wing aircraft (as well as rotary-wing aircraft) are air flow over the wings for lifting of the aircraft and an open area for landing. The majority of aircraft however also need an airport with the infrastructure to receive maintenance restocking refueling and for the loading and unloading of crew cargo and/or passengers. While the vast majority of aircraft land and take off on land some are capable of take off and landing on ice snow and calm water. The aircraft is the second fastest method of trport after the rocket. Commercial jet aircraft can reach up to 900 km/h. Single-engined aircraft are capable of reaching 175 km/h or more at cruise speed. Supersonic aircraft (military research and a few private aircraft) can reach speeds faster than sound. The speed record for a plane powered by an air-breathing engine is currently held by the experimental NASA X-43 which reached nearly ten times the speed of sound. The biggest aircraft currently in service is Antonov An-225 while the fastest currently in production is the Mikoyan MiG-31. The biggest supersonic jet ever produced and currently in service is Tupolev-160. Aircraft parts A typical fixed-wing aircraft can be divided into the following major parts: · A long cylinder called a fuselage with tapered ends to make its shape aerodynamically *** ooth. The fuselage carries the human flight crew the passengers if the aircraft is a passenger aircraft and/or the cargo if the aircraft carries cargo. The pilots who are members of the flight crew operate the aircraft from a cockpit located at the front of the fuselage and equipped with windows controls and instruments. · ... Aircraft controls A number of fairly standardized controls allow pilots to direct aircraft in the air. The controls found in a typical fixed-wing aircraft are as follows: · ... History Main articles: Aviation history and First flying machine The dream of flight goes back to the days of pre-history. Many stories from antiquity involve flight such as the Greek legend of Icarus and Daedalus. Leonardo da Vinci drew an aircraft in the 15th century. With the first flight made by man (Francois Pilatre de Rozier and Francois d"Arlandes) in an aircraft lighter than air a balloon the biggest challenge became to create other craft capable of controlled flight. 参考: *** When powered flights of the X-34 begin later this year the experimental vehicle will be carried aloft by the L-1011 then released for rocket-powered flight and a standard horizontal landing. Eventually the X-34 will perform high-speed suborbital free flights to demonstrate technologies such as advanced thermal protection system posite structural ponents and autonomous landing.

发过去了737 777 310 340 380

关于美国总统的权利不知道你要知道哪方面的内容，有很多参考文献可供参考： http://www.ilib.cn/A-lndxxb-zxshkxb200304014.html

Superstar - Lupe Fiasco (feat. Matthew Santos)[crowd cheering][Chorus – Matthew Santos]If you are what you say you are, a superstarThen have no fear, the camera"s is hereAnd the microphone"sAnd they wanna" know oh oh oh oh (The Return)If you are what you say you are, a superstarThen have no fear, the crowd is hereAnd the lights are onAnd they wanna show oh oh oh oh, yeah[Verse 1 – Lupe Fiasco]Yeah, uhA fresh cool young Lu"Tryna" catch his microphone check 2, 1, 2Wanna" believe my own hype but it"s too untrueThe world brought me to my knees, what have you brung you?Did you improve on the design? Did you do somethin" new?Well ya" name ain"t on the guest list, who brung you?YOU! The more famous person you come throughAnd the sexy lady next to you, you come tooAnd then it hit meStandin" outside of heaven waitin" for god to come and get meI"m too uncouthUnschooled to the rules and too gum shoeToo much of a new comer and too un-coolLike Shadow and Lavelle, I battle wit" it wellTho I need holiday like lady who sung "Blue"Go back, whatever you did you undoHeavy as heavenThe devil on me, two ton"s too[Chorus – Matthew Santos]If you are what you say you are, a superstarThen have no fear, the camera"s is hereAnd the microphone"sAnd they wanna" know oh oh oh oh, yeah[Verse 2 – Lupe Fiasco]And ya" better wear ya" shaaadesThe spotlights here can burn holes through the staaageDown to the basement pass the Indian gravesWhere the dinosaurs laidThen out through shinin", nearly miss the airlinersMagnified times five, "less its pointed at the ryhmerRicochets off the moon and sets the forest ablaaazeNow that"s important to say"Cause even with all that most of us don"t want it to faaadeWe want it to braid, meaning we want it to growMeaning we want it to staaayLike the Governor called and he told him to waaaitUn-strap him from the chair and put him back in his caaageThe audience ain"t faaazedAnd they ain"t gon" clap and they ain"t gon" praiseThey want everything back that they"ve paid"Cause they"ve been waitin" since ten to see the lights get dim[Chorus – Matthew Santos]If you are what you say you are, a superstarThen have no fear, the crowd is hereAnd the lights are onAnd they wanna show oh oh oh oh, yeah[Verse 3 – Lupe Fiasco]So chauffeur chauffeur come and take me away"Cause I"ve been standin" in this line for like five whole daysMe and security ain"t getting" alongAnd when I got to the front, they told me all of the tickets were goneSo just take me home where the mood is mellowAnd the roses are grown, M&Ms are yellowAnd the light bulbs around my mirror don"t flickerEverybody gets a nice autograph pictureOne for you and one for your sisterWho had to work tonight but is an avid listenerEvery songs her favorite song and mics don"t feedbackAll the reviewers say "You need to go and see that"And everybody claps "cause everybody is pleasedAnd then they all take the stage and start performin" for meLike, ha ha ha ha haHa ha ha ha ha, ha[Chorus – Matthew Santos]If you are what you say you are, a superstarThen have no fear, the camera"s is hereAnd the microphone"sAnd they wanna" know oh oh oh ohIf you are what you say you are, a superstarThen have no fear, the crowd is hereAnd the lights are onAnd they wanna show oh oh oh oh, yeahIf you are, what you say you areThen have no fear

1,（船）搁浅，触礁；使搁浅或触礁2.使停飞；使降落The airliners were grounded in Japan because of the coming of the typhoon.3.作为根据；作为基础

near miss 英 [niu0259 mis] 美 [nu026ar mu026as] n. 侥幸脱险，差点出事，几乎发生的事; [例句]Details have been given of a near miss between two airliners over southern England earlier this week本周早些时候两架客机在英格兰南部险些相撞，有关细节现已公布。[其他] 复数：near misses

这个是Lupe Fiasco 演唱的Superstar下面是歌词[crowd cheering] [Chorus (Matthew Santos):] If you are what you say you are, a superstar Then have no fear, the camera is here And the microphones And they wanna know oh oh oh oh (the return) If you are what you say you are, a superstar Then have no fear, the crowd is here And the lights are on And they wanna show oh oh oh oh, yeah [Verse 1 – Lupe Fiasco] Yeah, uh A fresh cool young Lu" Tryna catch his microphone check 2, 1, 2 Wanna believe my own hype but it"s too untrue The world brought me to my knees, what have you bring you? Did you improve on the design? Did you do somethin" new? Well your name ain"t on the guest list, who bring you? You! The more famous person you come through And the sexy lady next to you, you come too And then it hit me Standin" outside of heaven waitin" for god to come and get me I"m too uncouth Unschooled to the rules and too gum shoe Too much of a new comer and too un-cool Like Shadow and Lavelle, I battle with it well Tho I need holiday like lady who sung "Blue" Go back, whatever you did you undo Heavy as heaven The devil on me, two ton"s too [Chorus (Matthew Santos):] If you are what you say you are, a superstar Then have no fear, the camera is here And the microphones And they wanna" know oh oh oh oh, yeah [Verse 2 – Lupe Fiasco] And you better wear your shades The spotlights here can burn holes through the stage Down to the basement pass the Indian graves Where the dinosaurs laid Then out through China, nearly miss the airliners Magnified times five, "less it"s pointed at the rhymer Ricochets off the moon and sets the forest ablaze Now that"s important to say "cause even with all that most of us don"t want it to fade We want it to braid, meaning we want it to grow Meaning we want it to stay Like the Governor called and he told him to Wait Un-strap him from the chair and put him back in his Cage The audience ain"t fazed And they ain"t gonna clap and they ain"t gonna praise They want everything back that they"ve paid "cause they"ve been waitin" since ten to see the lights get dim [Chorus (Matthew Santos)] [Verse 3 – Lupe Fiasco] So chauffeur chauffeur come and take me away "cause I"ve been standin" in this line for like five whole days Me and security ain"t getting" along And when I got to the front, they told me all of the tickets were gone So just take me home where the mood is mellow And the roses are grown, M&M"s are yellow And the light bulbs around my mirror don"t flicker Everybody gets a nice autograph picture One for you and one for your sister Who had to work tonight but is an avid listener Every songs her favorite song and mics don"t feedback All the reviewers say "You need to go and see that" And everybody claps "cause everybody is pleased And then they all take the stage and start performin" for me Like, ha ha ha ha ha Ha ha ha ha ha, ha [Chorus (Matthew Santos):] If you are what you say you are, a superstar Then have no fear, the camera"s is here And the microphone"s And they wanna know oh oh oh oh If you are what you say you are, a superstar Then have no fear, the crowd is here And the lights are on And they wanna show oh oh oh oh, yeah If you are, what you say you are Then have no fear

adding to放在句首是什么意思：added to 主要用于 added to this / that，属惯用语，通常用于句首，意思是“而且”“此外”。如： Added to this, he is an untiring artist. 而且，他是一个不知疲倦的艺术家。 We were short of money. Added to that, we were lost! 我们钱不够。而且我们还迷路了！ Added to this, the birth rate is not so great as it was. 而且，目前的生育率也不像过去那么高。 Added to that , the child may have feelings of insecurity, jealousy and possessiveness. 除此之外，孩子还可能会有不安全感、嫉妒心和占有欲。 More than 750 commercial airliners were involved in fatal accidents last year. Added to that were the 1,550 smaller aircraft. 去年750多家商业航空公司遭遇过人员死亡的事故。另外还有1,550架小型飞机也出过同样的事故。

1 movement in the United States beginning in the 1960s and led primarily by Blacks in an effort to establish the civil rights of individual Black citizens2 national flag of the United Kingdom3 the period of European history at the close of the Middle Ages and the rise of the modern world; a cultural rebirth from the 14th through the middle of the 17th centuries4 the day in 2001 when Arab suicide bombers hijacked United States airliners and used them as bombs5 a United States program of economic aid for the reconstruction of Europe (1948-1952); named after George Marshall

Aviation industry"s most prestigious Teal, forecast the future 10 years, the global demand for executive will amount to 9000, the total value of about $94.4 billion, and China is one of the most potential markets, in the next 10 years executive is expected to reach 600-1200. If the aircraft flying at full capacity, annual turnover is expected to reach 60 billion yuan. Now China executive market 80% of customers is the large multinational companies, domestic customers only accounted for 20%. But with China"s wto accession, economy, and enterprise in the fierce competition, more and more companies want to race against time, to the time to yield, so the domestic enterprises will soon become the protagonist of executive market. The executive incalculable market potential in China. In the face of China"s huge business executive market, foreign airlines and aircraft manufacturers are keen to get in. 75 - year - old former seasons "American Raytheon", "Canada"s bombardier group", "the French dassault company" have to enter, to grab the opportunity. Business aviation is in accordance with the special requirements of a passenger or institutions, through a specially designed course, within the prescribed period of time, provide charter flight service to passengers. Many large companies use of corporate jets transport personnel and emergency items around the distribution in the company or the customer site. The world population is about 380000 aircraft in civilian aircraft flying, but the flight is less than 10%, more than 90% are executive and industry, agriculture, entertainment and sports by plane. Executive more developed countries, such as the United States has a variety of aircraft, 205000, executive annual flight hours already more than year of flight hours of flight. There are 1.5 enterprises with their own planes in public transportation. In the United States, is suitable for executive landing airport more: flight applicable airport less than 600, but to adapt to the airport for more than 5000 of medium-sized aircraft, suitable for small airport about 19000 flight. Business aviation companies or private operation of the executive is not limited by time of flight, not be restricted by destination, thus has good flexibility. Business aviation is a very safe and effective way to travel, using the business aviation can not only save time, can also ensure the trade secrets, reflect the positive image of an enterprise. By simply by the charter contract and proof of identity is boarding, don"t have to spend a few hours to check-in, customs clearance and waiting, without the rules of civil aviation transportation, you can according to the requirements of business activities to go, there is no limit to the flight schedules, if there is a temporary change, you can directly notified by telephone sets. Due to the official business and the performance is advanced, the airport requirements is not high, so widely applicable, can fly to many ordinary flights without shipment and can"t arrive at the airport, allows you to maximize use good money, time and human resources. Travel safety. No matter from the plane itself performance, maintenance level, or a record of the flight safety, executive is the most safe means of transportation in the world. Such as hawker beechcraft series executive from the world"s largest public/private aircraft manufacturer Raytheon, is by far the most widely used medium fighter jets. It has a better performance, greater ShangZai and farther distance. Executive of cabin design fully consider the business needs, not only has perfect service facilities, more excellent office environment. Passengers on the trip to discuss official business, effective utilization of air flight time in office. Executive shuttle important customers will impress customers!

栽培者在一个最小规模上生产药草和蔬菜, 通常移植一或较多的每次在种植的排蹒跚过了许多月, 和很少超过一或二个公顷每一农民。 美国合伙人在美国借了钱而且前进了它到那合作的以每月的方式。合作人然后前进被购买输入的栽培者大部分而且可能甚至运行或者支付土地准备费用。 栽培者负责劳动和水花费。 合作者以雇用的农艺学家的形式提供技术上的协助和 (在那越过) 农民教农民。 美国农民也已经投资很多的时间在-之上农场工作和在研究而且解决问题方面。 美国合伙人已经最后负责有害之物控制决定。 产品在飞往的它自己的车棚中被合作者包装那作为在商业的客机上的宽松的货物美国, 而且根据男人名的农场在市场上销售。

算了，我还是不翻译这个了。我不理解ARG和MA代表什么啊，和boeing什么关系？并列的吗？楼主知道吗？

7.A8.D9.D10.A

NASA is taking research to new heights -- and lengths -- with an ambitious uping mission. 美国航空航天局即将进行一项雄心勃勃的任务，将研究推向新的高度，同时也拓展了研究领域。 ASTHROS (Astrophysics Stratospheric Telescope for High Spectral Resolution Observations at Submillimeter-wavelengths) is a balloon that will carry a telescope into the stratosphere to study the co *** os and "observe wavelengths of light that aren"t visible from the ground " NASA says. 美国航空航天局说，ASTHROS（亚毫米波长高光谱分辨率观测的天体物理平流层望远镜）是一个气球，携带望远镜进入平流层研究宇宙，并“观察地面上看不到的波长”。 A gondola will be used beneath the balloon to carry the instrument as well as the telescope which is made up of an eight-foot antenna and several mirrors lenses and detectors. 气球下面有吊篮，装有器械和望远镜，望远镜上有八英尺天线和几个镜子、透镜和探测器。 To do this successfully ASTHROS has to hit an altitude of around 130 000 feet (roughly 24.6 miles) which is about four times higher than mercial airliners fly! As for the dimensions of the balloon itself it measures 400 feet wide -- about the size of a football stadium according to the release. 为了成功完成任务，ASTHROS需上升到约130 000英尺（约24.6英里）的高度，比商用客机飞行高度高出四倍！据透露，气球本身400英尺宽，约为一个足球场大小。 The team has put finishing touches on cooling and electronic systems involved and in August engineers will perform tests to make sure they run *** oothly. 该团队已完成冷却和相关电子系统的收尾工作，工程师们将于8月份进行测试，以确保运行平稳。 NASA says the balloon is expected to make o or three loops around the South Pole in about 21 to 28 days studying regions in the Milky Way galaxy newborn stars nitrogen ions and more. 美国航空航天局说预计这个气球将绕南极两到三圈，耗时约21-28天，研究银河系的区域、新生恒星、氮离子等。 After the mission is pleted operators will send mands that effectively separate the gondola which is connected to a parachute from the ballon. The gondola will then fall to the ground so the telescope can be collected and refurbished for future flights. 任务完成后，操作人员将发送指令使吊篮和气球有效分离，吊篮上绑有降落伞。吊篮将着陆，以便收回并翻新望远镜，以备未来之需。

The September 11, 2001 attacks (often referred to as 9/11—pronounced "nine eleven") consisted of a series of coordinated terrorist[1] suicide attacks upon the United States, predominantly targeting civilians, carried out on Tuesday, September 11, 2001.That morning, 19 terrorists[2] affiliated with al-Qaeda[3] hijacked four commercial passenger jet airliners. Each team of hijackers included a trained pilot. Two aircraft (United Airlines Flight 175 and American Airlines Flight 11) crashed into the World Trade Center in New York City, one plane into each tower (WTC 1 and WTC 2). Both towers collapsed within two hours, followed by WTC 7 later that day. The pilot of the third team crashed American Airlines Flight 77 into the Pentagon in Arlington County, Virginia. Passengers and members of the flight crew on the fourth aircraft (United Airlines Flight 93) attempted to retake control of their plane from the hijackers; that plane crashed into a field near the town of Shanksville in rural Somerset County, Pennsylvania. As well as the 19 hijackers, a confirmed 2,973 people died and another 24 are missing but presumed dead as a result of these attacks.

Cindy 应该是女人的名字。 所以是 “她” 而不是“他”。Dear Cindy, I am very glad to receive your email. Hope everything is fine with you. As for your inquiry with regard to my past weekend, I spent the past weekend just like every weekend in the past six months, i.e., staying at home doing nothing except for eating/drinking, studying, and sleeping. During the weekends, I get so bored that I am both afraid of and scared of the forthcoming of weekends. I would like to make changes in the schedule during the weekend. However, life without you will never be exciting. That is the reason I am so looking forward to your coming to China next month. I have a lot of plans for us in terms of where we will go and what to do. Are you coming by Chinese airliners or American ones. Please email me your itinerary so that I can go to the airport to pick you up. Wish you a smooth journey and I"ll see you and talk to you then.Best regards,Cheng Zhang我就不给你中文翻译了。 你自己去理解，这样有助于提高你的英文。若有个别特殊的问题，可来问我。

万安滩实际控制现状：万安滩的战略地位非常重要。它北面距离我国大陆1500千米以上，但与越南、马来西亚、印度利西亚的距离则比较近。其中，距离越南的东海岸线只有400千米左右。中国南海分布着四大群岛，分别是东沙群岛，西沙群岛，中沙群岛，南沙群岛。其中，南沙群岛面积最大，距离中国大陆最远，也是中国控制最薄弱的一大群岛。可以说，中国能否有效控制南海，关键就在于能否控制南沙。而控制南沙的关键，则在于能否控制南沙的门户——万安滩。万安滩就像一座漂浮于南沙及整个南海西南角的海上碉堡。只要控制了这里，就可以扼守出入南海的商船和舰艇，从而掌控广阔的南海南部海域和南沙群岛。万安滩位于南沙群岛的西南角，东西长63千米，宽11千米，面积约为700平方千米，水深在37到111米之间。万安滩的战略地位非常重要。它北面距离我国大陆1500千米以上，但与越南、马来西亚、印度利西亚的距离则比较近。其中，距离越南的东海岸线只有400千米左右。作为中国南海的西南门户，万安滩位于印度洋经马六甲海峡进入我国南海的咽喉要道。“败走”万安滩：众所周知，南海是我国四大海域中自然资源最丰富的海区，因此被称为第二个“波斯湾”。这里的石油储量至少有230到300亿吨，天然气储量约为20万亿立方米。而这些油气资源，很大一部分都集中在万安滩附近的海域。特别是万安滩所在的万安盆地区域，是南沙三大油气富集区之一，地下油气储量至少有50亿吨以上，可供开采数十年。但可恨的是，越南、菲律宾、马来西亚、文莱、印度尼西亚等国，依托各自侵占的南海岛礁的便利，在近几十年里，盗采了大量的南海油气资源。这些国家联合西方200多家石油公司，在南海海域钻探了约一千多口钻井，年石油产量高达5000万吨。尤其是越南，还在南海划定了至少185个开采区块。截至2008年，越南已从南沙开采了超过1亿吨石油以及1.5万亿立方米的天然气。越南在南海开采的油气资源利益，占其国内生产总值的20%到30%。

建议去网易云找找

分类: 外语/出国 解析: at all: 完全,根本 例句与用法: 1. I don"t think that"s a bad idea at all. 我看这完全不是个坏主意。 2. It doesn"t matter at all. 这根本没什么关系。 3. He is not at all alive to the danger he is in. 他完全没有意识到他处境的危险。 4. As a matter of fact, I didn"t know him at all. 事实上，我根本不认识他。 5. You might as well not know a thing at all as know it only a little. 只知道一点点，不如完全不晓得。 6. I"m not at all sure, actually. 实际上我根本不能肯定。 7. Whatever is worth doing at all is worth doing well. 任何值得做的事就值得做好。 8. It"s not at all that bad. 这根本没有那么坏。

combine; unite; marry; be united in wedlock; coalescent

一款软件，只有不断的完善自身功能，进行不断的更新，才能留住老用户，吸引新用户。时隔三年，微软office2019正式版终于发布，与上一版本office2016相比，新版本Office2019新增了许多智能功能，那么都有哪些新增加的功能呢，office2019又比上一代好在哪，一起来看看吧。1.动画选项卡Office2019并没有在界面上做出太多调整，唯一能够感觉到的，是切换标签时变得更加平顺与顺滑。动画风格和Win10有些契合，也就是淡入淡出效果，不过总体看没有对性能造成任何拖累，反而比Office2016更流畅一些。当然由于GIF帧率的缘故，示意图看起来可能有些卡顿，实际操作还是很OK的!2.平滑切换(PPT)PowerPoint增加一项平滑切换，有点类似于Keynote里的神奇移动。比如你在前一页幻灯片里建立了一组文字，然后把它复制到后一页幻灯片，接下来再对字体位置和排列进行一些调整。这样将两页幻灯设成平滑切换后，就能在播放画面看到神奇的变形切换了。其实这个效果和我们常说的补间动画有些类似，通过下图相信可以很好理解。3.缩放定位缩放定位可以看作是平滑切换的另一个版本，只不过平滑切换是针对于对象的，而缩放定位则针对于幻灯片。上面这组动画很好地展现了缩放定位的效果，比如你建立了一组平行幻灯片，传统方法是顺序或者通过建立超链接的方式解决前后衔接问题。而缩放定位则可以直接利用幻灯片缩略图进行衔入，还可以由用户自主指定进入子幻灯片后是顺序播放，还是返回总幻灯片。4.新IFS等函数Excel2019加入了几个新函数，其中比较有代表性的包括IFS、CONCAT、TEXTJOIN。以多条件判断IFS为例，以往当出现多个条件(即各条件是平行的，没有层次之分)时，我们必需借助IF嵌套或是AND、OR配合实现，这样的操作除了公式复杂、运行效率低以外，还很容易出错，不利于后期的修改与排错。新IFS函数可以直接将多个条件同时写出来，语法结构类似于IFS(条件1，结果，条件2，结果，条件3，结果，hellip;hellip;)，能够同时支持127个条件公式。不过这里有一个兼容性问题，即新函数只能在最新版Office365或Office2019上面打开，老版(如2016版)打开后会显示公式出错。5.3D模型PowerPoint2019支持3D模型，通过插入菜单rarr;3D模型，可以直接将标准的3D模型文件导入PPT中。插入好的模型，可以搭配鼠标拖曳，任意改变模型大小及角度。如果配合前面介绍的平滑切换，还可以实现炫酷的展示动画，对于模型展示效果也更好。6.内置图标点击Office2019的插入rarr;图标，你可以很容易地为文档、PPT添加一个图标。软件内置了上百个各个门类的SVG图标，你可以随意搜索并插入。相比传统的网络下载，内置图标除了搜索更加方便以外，还可以根据实际需要调整图标颜色。同时由于是矢量元素，这些图标还可以任意变形而不必担心虚化的问题。7.漏斗图/旭日图Excel2019增加了几个新图表，比如大家平时用得比较多的漏斗图和旭日图。其实在老版中，这些图表也能借助其它方法得到，只不过操作有些麻烦不太为人所知罢了。而在Excel2019中，直接在图表库里双击就能实现。8.地图图表地图也是此次Excel2019新增加的一种图表，可以通过地理位置在地图标识来实现数据对比。目前软件可以实现省一级(不必加入省字)地理位置识别，用来制作销售业绩报表非常方便。9.横式翻页这项功能类似于之前的阅读视图，能够让使用者像翻书一样横屏翻动页面，不过从实际使用来看，该功能的使用效能还有待考究，主要是横版后文字及内容都会变小且无法修改，反而让文档更加难以阅读。除了上面这些大的功能改进外，各组件的选项面板也有一些细节变化。不过对于一般用户来说，这些变化就没有太大必要了，实际使用时也很少会有调整。总体来说，新版Office相比三年前的Office2016更流畅、更实用，除了设计灵感缺席之外，其余功能已基本同步最新版Office365。但有一点需要特别注意，那就是Office2019只能在Windows10系统中安装，而这也是和Office2016最不一样的地方。以上就是小编给大家带来的office2019正式版新功能的介绍，有需要的小伙伴快去下载试试吧。Office2019|