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电焊机电流10档位如何调

2023-07-27 06:46:53
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LocCloud

使用焊条的电焊机一般工作时输出的电压跟电流是:电流大小要和焊条直径,焊件厚度,熟练程度等诸多因素有关,可以慢慢摸索。电压虽然不能调,但是接线的时候要注意,一般小型电焊机有3个接线柱,分别可以接380和220 。 正规电焊机都有电流调节器,大约在50到600A之间。 电焊机是利用正负两极在瞬间短路时产生的高温电弧来熔化电焊条上的焊料和被焊材料,来达到使它们结合的目的。电焊机(electric welding machine)实际上就是具有下降外特性的变压器,将220V和380V交流电变为低压的直流电,电焊机一般按输出电源种类可分为两种,一种是交流电源的,一种是直流电的。直流的电焊机可以说也是一个大功率的整流器,分正负极,交流电输入时,经变压器变压后,再由整流器整流,然后输出具有下降外特性的电源,输出端在接通和断开时会产生巨大的电压变化,两极在瞬间短路时引燃电弧,利用产生的电弧来熔化电焊条和焊材,冷却后来达到使它们结合的目的。

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有三个档,每个档开多大

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~~~~~~~~~~~~~~~~~~~~
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2023-07-26 00:20:442

焊机正负极接反对焊接质量有什么影响

应按工艺要求的接法使用焊机。当使用直流电焊机时,若焊件接正极,焊条接负极时叫正接。反接与之相反。正接时,工件为阳极,焊条为阴极,阳极比阴极温度高电流大,所以正接时熔深大;反接的特点是电弧稳定、飞溅较小、质量稳定。一般采用反接法施焊,在焊接厚板时,为增加熔深也可采用正接法。焊机工艺评定是在规定的正、反接的情况下得出的结论,如接错使用的参数就不对了,焊接质量肯定有问题,会产生焊接缺陷。
2023-07-26 00:20:543

什么是摩擦焊

摩擦焊机原理:在压力作用下,通过待焊工件的摩擦界面及其附近温度升高,材料的变形抗力降低、塑性提高、界面氧化膜破碎,伴随着材料产生塑性流变,通过界面的分子扩散和再结晶而实现焊接的固态方法。摩擦焊通常由如下四个步骤构成:1.机械能转化为热能2.材料塑性变形3.热塑性下的锻压力4.分子间扩散再结晶摩擦焊优势:摩擦焊相对传统熔焊最大的不同点在于整个焊接过程中,待焊金属获得能量升高达到的温度并没有达到其熔点,即金属是热塑性状态下实现的类锻态固相连接。相对于传统熔焊,摩擦焊具有焊接头质量高,能达到焊缝强度与基本材料等强度,焊接效率高、质量稳定、一致性好,可实现异种材料焊接等。Friction welding machine principle:Under pressure, to be welded byFriction interface temperature of the work piece and its vicinityIncreased deformation resistance of the material is reduced,Plasticity increased interfacial oxide film broken,Along with the material to produce plastic flow interface by molecular diffusion and Re crystallization Solid-state welding method.Friction welding is generally constituted by the following four steps:1. the mechanical energy into heat2. Plastic Deformation3. The thermoplastic forging force under4. molecular diffusion and re crystallizationFriction Welding Advantages:Compared with the traditional friction welding fusion biggest difference is that the entire welding process, the metal to be welded to gain energy to reach elevated temperatures did not reach its melting point, that is, the metal is at a thermoplastic state class that implements the forged solid connection.Compared with traditional fusion welding, friction welding with high quality welded joints, weld strength and intensity to achieve the basic materials, high welding efficiency, stable quality, consistency, enabling dissimilar material welding.
2023-07-26 00:21:102

热风回流焊接机用英语怎么说

热风回流焊接机的英文翻译_百度翻译热风回流焊接机Hot air reflow soldering machine 全部释义和例句试试人工翻译machine_百度翻译machine 英[mu0259u02c8u0283i:n] 美[mu0259u02c8u0283in] n. 机器,机械; 机械般的人; 核心;
2023-07-26 00:21:171

描写“榆钱”的诗句有哪些?

风外榆钱无意绪。
2023-07-26 00:19:421

"sign ln"是什么意思?如何使用?

sign in词典解释1.签到They signed in at the reception desk. 他们在接待处签到。 网络释义1.注册2.签到;签收3.签名sign up跟…签订合同如果是网站,sign up 是注册,sign in 是登录
2023-07-26 00:19:451

榆钱自古以来就是人们的盘中餐,榆钱有什么样的好吃的制作法?

有榆钱炒蛋、蒸榆钱、榆钱饼、榆钱包子、榆钱窝窝,这些美食都很好吃。
2023-07-26 00:19:494

adobe midia player中的 sign in是什么意思

登陆
2023-07-26 00:19:532

吉首大学是几本

吉首大学是一本大学。吉首大学在湖南是本科一批招生,所以我们通常认为吉首大学是一本大学。(注:2018年起,吉首大学调整到湖南省本科一批招生,另外自2021年开始,湖南本科一批、二批合并为本科批)是湖南省国内一流学科建设高校,入选国家“中西部高校基础能力建设工程”、“卓越医生教育培养计划”、“卓越农林人才教育培养计划”、“服务国家特殊需求博士人才培养项目”、“湖南省2011计划”、“中国服务外包校企联盟”。师资队伍:有国家级教学团队2个,省级优秀教学团队3个,省级科技创新团队4个。有全国先进教育工作者1人,五一劳动奖章2人,全国优秀教师9人,全国师德先进个人1人,全国模范教师1人,徐特立教育奖获得者1人,曾宪梓教育基金奖获得者5人,宝钢教育基金奖获得者2人。学校师资:学校在职教职员工近1500人,专任教师1100余人,其中高级职称700余人,博士生导师、硕士生导师共560余人。有“国务院政府特殊津贴”专家14人,“新世纪百千万人才工程”国家级人选1人,教育部“新世纪优秀人才支持计划”6人,国家民委民族问题研究优秀中青年专家1人。
2023-07-26 00:19:541

简述新乐府诗

新乐府运动是贞元、元和年间特定时代条件下的产物。这时,安史之乱已经过去,唐王朝正走向衰落。一方面,藩镇割据,宦官擅权,赋税繁重,贫富悬殊,蕃族侵扰,战祸频仍,社会生活各方面的矛盾进一步显露出来;另一方面,统治阶级中一部分有识之士,对现实的弊病有了更清楚的认识,他们希望通过改良政治,缓和社会矛盾,使得唐王朝中兴。这种情况反映在当时的文坛和诗坛上,便分别出现了韩愈、柳宗元倡导的古文运动和白居易、元稹倡导的新乐府运动。 元和四年 (809),李绅首先写了《新题乐府》20首(今佚)送给元稹,元稹认为"雅有所谓,不虚为文",于是"取其病时之尤急者,列而和之",写作了《和李校书新题乐府》12首。后来白居易又写成《新乐府》50首,正式标举"新乐府"的名称。白居易还有《秦中吟》10首,也体现了同样的精神。新乐府作为诗歌运动,其创作并不限于写新题乐府。当时张籍、王建、刘猛、李余等人,既写新题乐府,又写古题乐府,都体现了诗歌革新的方向。元稹原与白居易、李绅约定"不复拟赋古题",后来见到刘猛、李余所作古乐府诗,感到"其中一二十章,咸有新意",于是又和了古题乐府19首。虽用古题,但或"全无古义","或颇同古义,全创新词"(元稹《乐府古题序》),其实质、作用与新乐府是一致的。这样,在当时形成了一个影响很大的诗歌运动,文学史上称之为新乐府运动。 白居易在《与元九书》、《新乐府序》、《寄唐生》、《伤唐衢》、《读张籍古乐府》等诗文中,元稹在《和李校书新题乐府序》、《乐府古题序》等诗序中,阐述了新乐府运动的理论主张。所谓"文章合为时而著,歌诗合为事而作"(《与元九书》),"为君、为臣、为民、为物、为事而作,不为文而作"(《新乐府序》),明确提出了新乐府运动的基本宗旨。所谓"救济人病,裨补时阙","上以补察时政,下以泄导人情"(《与元九书》),"风雅比兴外,未尝著空文"(《读张籍古乐府》),强调了诗歌的社会功能和讽谕作用;所谓"惟歌生民病"(《寄唐生》),"但伤民病痛"(《伤唐衢》),"讽兴当时之事"(《乐府古题序》),反对"嘲风雪、弄花草"(《与元九书》),是主张诗歌要有社会内容,要反映民生疾苦和社会现实弊端。所谓"根情、苗言、华声、实义"(《与元九书》),"其辞质而径"、"其言直而切"、"其事□而实"、"其体顺而肆"(《新乐府序》),"非求宫律高,不务文字奇"(《寄唐生》),则是要求诗歌的形式与内容统一,为内容服务,表达直切顺畅,让人容易接受。这些诗歌理论,一反大历以来逐渐抬头的逃避现实的诗风,发扬了《诗经》、汉魏乐府和杜甫以来的优良的诗歌传统,是具有进步意义的。 新乐府运动的诗歌创作,实践了上述理论主张。白居易、元稹、张籍、王建等人的乐府诗及其他的一些作品,反映了中唐时期极为广阔的社会生活面,从各个方面揭示了当时存在的社会矛盾,提出了异常尖锐的社会问题。如白居易的《杜陵叟》、《卖炭翁》,元稹的《田家词》、《织妇词》,张籍的《野老歌》,王建的《水夫谣》等,都是直接描写劳动人民所遭受的残酷剥削和压迫,为他们的悲惨命运鸣不平的;白居易的《缭绫》、《红线毯》、《重赋》、《轻肥》等,是直接刺责统治阶级的骄奢淫□,并从中反映贫富悬殊、阶级对立的;白居易的《宿紫阁山北村》、张籍的《猛虎行》、王建的《羽林行》等,是揭露特权阶层恶势力为非作歹、残害人民的;白居易的《新丰折臂翁》、元稹的《夫远征》、张籍的《塞下曲》、王建的《渡辽水》等,是反映边地士兵之苦和反对穷兵黩武的;白居易的《盐商妇》、元稹的《估客乐》、张籍的《贾客乐》等,是反映当时商业经济的畸形发展,富裕商人和穷苦农民之间的矛盾的;白居易的《上阳人》、《井底引银瓶》,张籍的《妾薄命》,王建的《望夫石》、《去妇》等,是同情妇女们不幸遭遇的。诸如此类的作品,大都具有较强烈的现实意义和鲜明的倾向性。在艺术上,尽管各人的成就不同,风格互有差异,又大都体现出平易通俗,直切明畅的共同特色。它们展示了新乐府运动的实绩。 新乐府运动的创作,既要针砭现实、指斥时弊,自然就不能不触犯许多权势者。白居易说,他的诗曾使得"权豪贵近者相目而变色","执政柄者扼腕","握军要者切齿",竟至"言未闻而谤已成"(《与元九书》),可见斗争是很激烈的。元和十年,白居易横遭毁谤,远谪江州,以他为主要倡导者的新乐府运动也因此受到挫折。事实上,统治阶级的腐败和现实政治的黑暗,也使得新乐府运动已无法再继续下去。尽管如此,它在中国诗歌史上却留下了光辉的一页,并对后世诗歌的发展产生了深远的影响。晚唐皮日休作《正乐府》10篇,聂夷中也多写反映现实的乐府诗,就是对新乐府运动传统的直接继承。 (录自《中国大百科全书》)
2023-07-26 00:20:003

zabbix sign in 和 login as guest的区别

login as gues 全部释义和例句>>登录为客人zab bix sign in 全部释义和例句>>朱达比克斯标志fanyi.baidu.com
2023-07-26 00:20:022

翻译一下

现在最成功的电影明星之一Richard Gere,他拍的电影有《军官与绅士》、《北方佬和漂亮妞》、《艾斯琳》和《英俊男人》。拥有灰色的头发和棕色的眼睛的他非常受女性观众的喜爱。他与聚模特、演员和节目主持人于一身的Cindy Crawford结婚。Crawford有棕色的长发和棕色的眼睛而且她身材高挑又漂亮。Richard Gere 和Cindy Crawford住在美国。他们有一个在纽约的公寓和一个在加利福尼亚的房子。不一定准确,但八九不离十吧~
2023-07-26 00:20:061

oops是什么意思 应该用在什么地方

这是一个英文单词,可以表示惊讶,有的地方表示恍然大悟!
2023-07-26 00:20:086

laser的全称的翻译是什么

laser[5leizE]n.(1)激光英汉双解计算机词典[基本词义]laser激光器;〔雷射〕(1)1.Adevicewhichtransmitsanextremelynarrowandcoherentbeamofelectromagneticenergyinthevisiblelightspectrum.一种能够发射可见光谱电磁能的极细的相干光束的装置。2.Inoptoelectronics,adevicethatemitslightrayswhichareinphase,travellinginthesamedirectionandessentiallyofthesamewavelength(thesamefrequency),i.e.,colour.Alaserbeamdoesnotdivergebyasignificantamountandmaintainsahighenergydensity.Itthuscantravelgreatdistanceswithoutdivergingfromatightbeam.Lasersareusedinopticalsignallingdevices,high-speedprinters,fiberopticsandholography,etc.|在光电子学中,一种发射光线的器件,所发射的光线是同相的,沿同一方向传播,且其波长(或说其频率)完全一样,亦即颜色完全一样。激光束不会明显发散,且能保持高的能量密度。因此,它可以发射到很远的地方而不从密集的光束中发散。激光器应用于光通信设备、高速打印机、光纤光学和全息照相术等。3.In3800PrintingSubsystem,adevicethatemitsabeamofcoherentlightthatformstheimageonthephotoconductorthatissubsequentlytransferredtothepaper.|在IBM3800打印子系统中,一种发出相干光束的设备,发出的光束在光电导体上形成图象,继而被传送到打印纸上。LightAmplificationbyStimulatedEmissionofRadiation的缩写。
2023-07-26 00:20:101

怪人的英文

Nut
2023-07-26 00:20:124

laser什么意思

镭射,读法也是镭射,意思就是激光器,镭射器
2023-07-26 00:19:413

关于二战所有的电影

豆腐脑
2023-07-26 00:19:418

蚊子的刺吸式口器到底是什么样子的?

像一根针吧
2023-07-26 00:19:348

榆钱的功效和作用禁忌

  1、榆钱的功效和作用:清热安神,榆钱中含有大量水分、烟酸、抗坏血酸及无机盐等,其中钙、磷含量较为丰富,有清热安神之效,可治疗神经衰弱、失眠。杀虫消肿,榆钱果实中的烟酸、种子油有清热解毒,杀虫消肿的作用,可杀多种人体寄生虫,同时,榆钱还可通过利小便而消肿。   2、止咳化痰:止咳化痰也是榆钱的重要功效之一,它味辛可以入肺经,还能清除肺热,它含有的榆树种子油也能滋肺肺部,让痰液稀释,平时人们出现咳嗽痰多等症状时,可以适量食用榆钱,能让这些症状很快减轻。   3、健脾益胃:榆钱中含有大量烟酸、抗坏血酸等酸性物质,同时还含有大量的无机盐,可以健牌和胃,治疗食欲不振。   4、降血糖和胆固醇:榆钱含有大量的膳食纤维,纤维可以清洁消化道和增强消化功能,保护脆弱的消化道和预防结肠癌。纤维可减缓消化速度和最快速排泄胆固醇,所以可让血液中的血糖和胆固醇控制在最理想的水平。膳食纤维中的果胶使进餐后血糖不会急剧上升,有利于糖尿病病情的改善,还可以帮助糖尿病患者降低甘油三酯。   5、榆钱的禁忌:患有胃溃疡和十二指肠溃疡的人不适宜食用榆钱。食用榆钱的时候要注意用量,不能过量食用,不然会对机体健康造成一定的不利影响。
2023-07-26 00:19:331

laser是什么意思 《欧路词典》英汉

abbr. Light Amplification by Stimulated Emission of Radiation 激光器, 受激辐射式光频放大器
2023-07-26 00:19:332

Echo在爱情里什么意思?

你好,Echo在爱情中有回音的意思。Echo来源于希腊神话中的Echo女神,在神话故事中,宙斯的老婆赫拉嫉妒山林女神Echo的美貌,让她失去了正常的说话能力,只能重复别人的话的最后三个字,这也是为什么Echo后来成为回声的由在这个故事中,美丽的Echo爱上了河神Cephisus之子Narcissus,Narcissus是一个骄傲和美貌都达到极致的男子 。  美丽的Echo带着自己的爱,来到了Narcissus身边,希望他可以注意到自己,然后接受自己。当时Narcissus觉得有人在跟随自己,于是便问谁在这里。  Echo欣喜万分,因为她想告诉Narcissus自己的爱,不过她没有正常说话的能力,所以无法表达自己。  不过她不愿意放弃这次机会,她想让Narcissus多留一会儿,于是她说出了话。不过Narcissus没有听懂,而是以为这个姑娘是一个轻浮的人,于是满脸不屑走了。  后来,Echo满脸羞愧,最后憔悴而死爱就不要轻易放手 你发觉了吗?爱的感觉总是在一开始时甜蜜,总觉得多了一个人陪,多了一个人帮你分担,你终于不再孤单了,因为至少有一个人想着你、恋着你,只要能在一起就是好的。 但是慢慢地,随着认识的加深,你开始发现了对方的缺点,于是问题一个接一个出现,你开始烦、累,甚至想要逃避,有人说爱情就像捡石,总想捡到一个适合自己的,但是你又如何知道什么时候能够捡到呢?她适合你,那你又适合她吗? 其实,爱情应该像磨石子儿,或许刚捡到的时候,你不是那么满意,但是请记住,人是有弹性的,很多事情是可以改变的,只要你有心,有勇气,与其到处去捡未知的石头仅供参考
2023-07-26 00:19:325

骂人超狠超难听带脏字英文

1、Don"t give me your shit.别跟我胡扯。2、What the hell is wrong with you?我靠,你到底怎么了?3、The fucking mofo, I want to kill you!Cocksucker!你妈的,我要杀了你!贱人!4、What the hell did you see that?我靠,你看到了吗?5、You"re a pain in the ass.你这讨厌鬼。6、You shouldn"t have done that!你真不应该那样做!7、Shut up!闭嘴!8、What a stupid idiot!真是白痴一个!9、What do you want?你想怎么样?10、I hate you!我讨厌你!11、Who do you think you are?你以为你是谁?12、It"s none of your business.关你屁事!13、What"s wrong with you?你怎么回事?14、Cut it out.省省吧。15、You"re fucking piece of shit! 你他妈的就是一砣屎,你他妈的什么也不是!16、You"re nothing to me.你对我什么都不是。17、Take a hike!哪儿凉快哪儿歇着去吧。18、You"re a jerk!你是个废物/混球!19、Get the fucking my way!他妈的给我滚!20、I"m fed up.我厌倦了。21、You have a lot of nerve.脸皮真厚。22、What the hell is going on with that god damn dirty language stuff?那个满口脏话的家伙他妈的到底在干什么?23、You"re an asshole.你这缺德鬼。24、You bastard!你这杂种!25、Knock it off.少来这一套。26、Don"t talk to me like that!别那样和我说话!27、I can"t take it anymore.我受不了了!(李阳老师常用)28、Fuck you the fucking fucker!你他妈的真混蛋!29、Stop complaining!别发牢骚!30、I"ve had enough of your garbage.我听腻了你的废话。31、You make me sick!你真让我恶心!32、Don"t bother me.别烦我。33、Get lost.滚开!34、You piss me off.你气死我了。35、You stupid jerk!你这蠢猪!
2023-07-26 00:19:241

echo是什么意思中文

1、echo:计算机命令。它可以基于TCP协议,服务器就在TCP端口7检测有无消息,如果使用UDP协议,基本过程和TCP一样,检测的端口也是7。是路由也是网络中最常用的数据包,可以通过发送echo包知道当前的连接节点有那些路径,并且通过往返时间能得出路径长度。2、希腊神话中,Echo是一个森林女神。
2023-07-26 00:19:231

吉首大学是一本还是二本

吉首大学是一本还是二本介绍如下:吉首大学是一本。学校地跨吉首市和张家界市两地办学,学校是湖南省国内一流学科建设高校,具有“推荐优秀应届本科毕业生免试攻读硕士学位研究生”资格。吉首大学是一本还是二本首先,这一点希望大家清楚,教育部门并没有划分吉首大学是一本还是二本,毕业证上只有本科和专科之分,是几本只是民间的说法。(某大学在某省是第一批次招生的话,通常认为该大学是一本大学,在第二批次招生的话,通常认为该大学是二本大学)根据公开信息可知:吉首大学在湖南是本科一批招生,所以我们通常认为吉首大学是一本大学。(注:2018年起,吉首大学调整到湖南省本科一批招生,另外自2021年开始,湖南本科一批、二批合并为本科批)吉首大学简介吉首大学是国家民委与湖南省人民政府共建高校,国家“中西部高校基础能力建设工程”高校,《武陵山片区区域发展与扶贫攻坚规划》重点建设高校,教育部本科教学工作水平评估优秀学校,湖南省研究生培养过程质量评估优秀学校,推荐优秀应届本科毕业生免试攻读硕士学位研究生普通高校。2018年获批为博士学位授权单位,在湖南等省市按一本批次录取招生。学校师资:学校在职教职员工近1500人,专任教师1100余人,其中高级职称700余人,博士生导师、硕士生导师共560余人。有“国务院政府特殊津贴”专家14人,“新世纪百千万人才工程”国家级人选1人,教育部“新世纪优秀人才支持计划”6人,国家民委民族问题研究优秀中青年专家1人。
2023-07-26 00:19:221

面对美国人对我们说ching chong china,要怎么回复呢

用中文骂回他...
2023-07-26 00:19:225

Trouble is a friend的中英文歌词?

演唱:Lenka (兰卡)专辑:Lenka (兰卡的异想世界)歌名:Trouble Is A Friend (麻烦是朋友)Trouble will find you no matter where you go, oh oh 无论你走到哪儿 麻烦都会找到你 哦哦 No matter if you;re fast, no matter if you;re slow, oh oh 不管你多快 不管你多慢 噢噢 The eye of the storm wanna cry in the morn, oh oh 暴风肆虐后的场景在清晨让你哭泣,噢噢 You;re fine for a while but you start to lose control 你一会感觉良好但是却开始失去控制 He;s there in the dark, he;s there in my heart 他在黑暗中 他在我心中 He waits in the wings, he;s gotta play a part 他张开翅膀等待,他开始发威。 Trouble is a friend, yeah trouble is a friend of mine 麻烦是朋友 yeah 麻烦在跟著我。 Ahh.. 啊 Trouble is a friend, but trouble is a foe, oh oh 麻烦是朋友 可是麻烦是敌人 哦哦 And no matter what I feed him he always seems to grow, oh oh 并且不管我对他怎麼做他总是在长大,噢噢。 He sees what I see and he knows what I know, oh oh 我看到的他都看到 我知道的他都知道 噢噢 So don;t forget as you ease on down my road 因此在轻松前行时也要铭记 He;s there in the dark, he;s there in my heart 他在黑暗中 他在我心中 He waits in the wings, he;s gotta play a part 他张开翅膀等待,他开始发威。 Trouble is a friend, yeah trouble is a friend of mine 麻烦是朋友 yeah 麻烦伴随著我 So don;t be alarmed if he takes you by the arm 所以当他拉住你的手臂 别惊慌 I roll down the window, I;m a sucker for his charm 我摇下车窗 臣服在他脚下 Trouble is a friend, yeah trouble is a friend of mine 麻烦是朋友 yeah 麻烦如影随行跟著我 Ahh.. 阿 How I hate the way he makes me feel 我多恨他以这种方式让我有这样的感觉 And how I try to make him leave 我如何让他离开 I try, oh oh I try 我尝试 哦哦 我尝试 He;s there in the dark, he;s there in my heart 他在黑暗中 他在我心中 He waits in the wings, he;s gotta play a part 他张开翅膀等待,他开始发威 Trouble is a friend, yeah trouble is a friend of mine 麻烦是朋友 yeah 麻烦伴随著我 So don;t be alarmed if he takes you by the arm 所以 当他拉住你的手臂 别惊慌 I roll down the window, I;m a sucker for his charm 我摇下车窗 臣服在他脚下 Trouble is a friend, yeah trouble is a friend of mine 麻烦是朋友 yeah 麻烦如影随行跟著我 Ahh.. 啊 Ooh.. 哦 Ahh.. 啊 Ooh.. 哦
2023-07-26 00:19:163