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The ash clouds include particles of rock, glass and sand that can get into an aircraft's engine and cause it to stall.
VOA: standard.2010.04.17
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So now let's look at the efficiency of our irreversible engine.
再来看看,不可逆热机的效率。
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The Book of the Month Club was a mail-order book club that started in 1926 and it became an incredibly powerful engine for selling books, just as Oprah's Book Club is today.
月读书友会是一个创立于1926年的邮购书友会6,是图书销售的强大引擎，正如今天的奥普拉书友会一样。
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There were new designs for the plane's rocket engine, landing equipment and the small rockets needed to move it in space.
VOA: special.2010.07.07
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Let's just take our reversible engine and modify it a little bit.
我们就拿可逆热机为研究对象,并对它进行一点修改。
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It was not until Henry Ford's gas-powered Model T that the internal combustion engine and the car became inseparable.
VOA: special.2010.11.17
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Once that's clear, we will send it to the necessary application, be it a search engine or anti-virus software, or a stock search, or shopping, or FriendFinder - anything that can be plugged into this kind of platform.
结果一出,页面将会转到相应的应用，像，搜索引擎，或者，杀毒软件，或是，股票搜索，购物，交友网站,任何能够接入平台的东西。
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A nineteen forty-nine spoken-word narration of the popular children's story "The Little Engine that Could."
VOA: special.2010.07.09
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There are no less than twenty pages devoted to the critical debate on these two lines: what the hell Saint Peter's two-handed engine is, what it looks like, what it does, what -- and everything about it.
集中描写这两行里的争论的,不少于20页：,圣彼得的双手引擎到底是什么，长什么样，用来干什么-和关于它的所有所有。
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When he is clear of the B-52, he starts the X-15's rocket engine.
VOA: special.2010.07.07
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It's just like you could say some of the principles of mechanics are very obvious, but to make an engine that operates in terms of those principles is not obvious.
这就像你能说,很多机械原理都显而易见，但是要根据这些原理,制作一个能够运转的发动机,就不那么容易了。
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In nineteen thirty, she became the first woman in the United States to get a pilot's license to fly a glider, which does not have an engine.
VOA: special.2009.06.28
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I mean, you know the wings go, and the air runs, and then the motor on the engine and it's a miracle how it gets up there and that is the way I used to explain the Greeks, because I had no better idea.
我的意思是,你知道机翼的作用,空气的流动,还有引擎上的发动机,飞机能飞起来,是个奇迹,我就是用这种方式来解释希腊历史的,因为我也没有更好的方法了
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"Find a cure at bing.com. It's not just a search engine.
VOA: special.2009.07.17
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As we expected, it's less than one, and of course if we build an engine, we want it to be as high as possible, as close to one as possible.
就像预先期待的一样，效率小于一，当然如果我们建造一台热机，我们希望效率越高越好，尽可能接近一。
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It's the first-ever decision engine. From Microsoft." A Web traffic report last Friday from StatCounter said Bing twice passed Yahoo in usage in the United States in its first few weeks.
VOA: special.2009.07.17
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So you know, what the second law is doing, in other words, it's putting these restrictions on how well or how effectively we can convert heat into work in the case of the engine, or work into heat extracted in the case of a refrigerator.
你们知道，在热机中，热力学第二定律的作用，换句话说，就是给热量,转化为功的效率,施加限制,或在制冷剂中，对抽取热量,进行限制。
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From what we can tell, other than one fire engine distributing water, there's really no presence of any government or other internationalaid groups here.
VOA: standard.2010.01.14
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Size matters here; and this -the two-handed engine -- is big, and it works, and it's able to put an apocalyptic end to all corruption and in fact it's able to put something like an apocalyptic end to all life.
大小在这里很重要,这个双手引擎是非常大的，它工作着，还能够启示一切腐败的终结,实际上它能够给所有生物带来天启的结束。
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a 1949 spoken-word narration of the popular children's story "The Little Engine That Could";
VOA: standard.2010.07.08
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So it's going to be the case for any irreversible engine.
这对所有不可逆热机都成立。
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"We're probably more optimistic than the pundits might be,". "With that in mind, we're putting everything we can, it's the coal to our engine, lending is what we do.
VOA: standard.2009.12.20
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So the way I've got things written here, q1 Heat's flowing from the hot reservoir to the engine that runs in a cycle.
我把这些都这些这里，是正的，q1，is，positive,热从高温的热源,传到循环工作的热机，对外做功。
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