单词：external-combustion engines
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【机械学】外燃(发动)机
单词：external-combustion engines 相关文章
Work Book --- Unit 11--- Listening You are going to hear about Yang Liwei----China's first astronaut.Listen to the tape and answer the questions below. Part One Five, four, three, two, one.We have taken off.On October 15th,2003,Yang liwei became the
高中英语听力人教版第二册
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. There's a huge, gunky brown cloud that lingers over south Asia and the Indian Ocean each winter. Its been known to cause respiratory diseases and even
Scientific American(一)月
文本： Bond:Nicole - Nicole!Are you all right? Nicole:I think I broke my _(1)_ - Bond:Here - let me see.This should work until we can get you to a Doctor. Nicole:You really did turn out to be my bodyguard.What was that? Bond:The train is stopping.
小龟乐游记英语短文
Another good candidate would be a government-run plant at Badarpur, less than 50km from the middle of Delhi. 另一个较好的选择便是位于巴达普（距德里市中心不到50千米）的官办工厂。 According to the Centre for Science and
经济学人科技系列
(MA-AT) Since we've been discussing alternative fuels lately, I wanted to pass on to you some information I read about a new fuel that's been in the news a lot lately. It's called A-21. It's composed of water and a chemical known as naphtha. It seem
托福听力短文
[ti:UNIT 5 Go With Transportation Lesson 40: Unit Review] [0:00.000]UNIT 5 [0:01.895]Go with Transportation! [0:04.129]Lesson 40 [0:05.657]Unit Review [0:06.935]Ⅰ. Building Your Vocabulary [0:10.590]A. Fill in each blank with the proper word from t
河北教育初中英语（初中起点）八年级下册
New research finds a link between vehicle emissions and cognitive function in older people. People who live in polluted cities can see the grit and dirt produced from vehicle engines but some of the most damaging emissions are only now starting to be
VOA标准英语2011年(一月)
The Associated Press reports Monday that Rolls-Royce will temporarily replace entire engines on A380 Superjumbo jets, after an oil leak in an engine earlier this month caused a fire in the engine and a catastrophic failure. British jet-engine maker R
VOA标准英语2010年(十一)月
Washington Auto Show Highlights New Technologies 华盛顿车展突出新技术 WASHINGTON At this week's annual Washington Auto Show, manufacturers are featuring their standard models along with cars that point to the future, both in terms of propul
VOA标准英语2014年(一月)
This Internal Combustion Engine is 50% More Efficient 新型内燃机效率提高50% Internal combustion engines in cars may be on their way out, but experts agree it will take a few decades before electric-powered vehicles become dominant. Meanwhile
VOA标准英语2016年(三月)
You lack a set of spinnerets, and you lack know-how. But cheer up, you don't need a web. 你少了一个吐丝器，你也少了这门技术。不过高兴起来吧，你用不上网。 Zuckerman supplies you with three big meals a day. Why should yo
夏洛的网
This is Search Engine Optimization Explained by Common Craft. 本期介绍搜索引擎优化。 Imagine for a minute that youre a librarian, but not a normal one. Youre a librarian for every book in the world. 假设你是名超级图书管理员，管
英语万花筒
This week large parts of England and Wales have fallen under the spell of a hazy sky. The Department of Environment, Food, and Rural Affairs (DEFRA) said pollution in the southeast of England, including London, reached nine on a scale of 10. Jill Mea
英语新闻
The engines powering the Royal Navys cutting-edge fleet of Type 45 destroyers are unable to operate continuously in the warm waters of the Gulf, MPs were told on Tuesday. 周二，英国国会议员们被告知，英国皇家海军(Royal Navy)最先进
英语新闻
第一条微博如下： Greetings to my friends in China! It has been too long! I last visited China in 2006 when I took part in a physics conference in Beijing. It was an extraordinary experience. My first trip was in 1985 when I travelled across y
阅读空间
The World Health Organization, upgrading a previous warning, said June 12 that diesel exhaust causes cancer and called for tighter emissions standards, comparing the risk of exhaust to second-hand cigarette smoke. Tuesdays announcement comes after in
英语新闻
Uncle Sam is working all the time to improve his mail service. 山姆大叔一直在努力改善邮政服务。 Besides the railroads, with their fast-moving post offices on wheels, 除了铁路，移动中的快速邮政局， we have today splendid
美国小学英语教材6
模仿文本： In fact, we've got billions of friends in us. From our mouth to the end of our large intestine, all of us are the warm, wet and well-provisioned host to a remarkable ecosystem of microbes, many of which aren't just friends, but essent
英音模仿秀
Business 商业报道 Civilian jet engines 民用航空发动机 Gearing up for a fight 奋力一战 Pratt amp; Whitney hopes a high-tech engine will restore its former dominance. 普拉特惠特尼公司期待其新款的高科技航空发动机能重
经济学人商业系列
SCOTT SIMON, HOST: The Democrats' proposed Green New Deal calls for America to eliminate greenhouse gas emissions from U.S. transportation, an ambitious goal that would require - among many other things - phasing out cars that run on gasoline. That m
2019年NPR美国国家公共电台2月