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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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And on this side, we're going to write out an engine, and we're going to say this is a Carnot engine.
在这边，我们画出一个热机，是卡诺热机。
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We need to believe that the soul, unlike an engine, can't itself be destroyed, can't itself decompose, can't fall apart.
我们需要相信的是，灵魂和发动机不同，自己不会毁灭，自己不会腐烂，自己不会变成碎片。
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Geithner argues that major exporting nations can no longer look to the United States as an engine that will pull their economies out of recession.
VOA: standard.2009.09.25
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If we build an engine for a car or anything else, it almost always is going to have some key element that's operating in a cycle, otherwise it won't keep going, right.
如果我们为一辆汽车，或其他什么东西制造一台引擎,它总要有一些关键，要素来形成循环。
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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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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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Engineers discovered the problem during fueling, and worried that any excess hydrogen on the launch pad could cause an explosion during engine ignition.
VOA: standard.2009.03.15
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And another analogy we can use is of an engine.
另一个类比是关于引擎的。
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"It is an important piece of the economic engine of the fisheries in the Gulf of Mexico.
VOA: standard.2010.05.26
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What the Market Revolution was, in so many ways, was an engine, a tremendous Charles Sellers has written a famous book on this it was a tremendous engine for what became arguably the most prevalent idea of the entire nineteenth century in America, and that's the notion of progress.
在很大层面上,市场革命,就是一个巨大的发动机,查尔斯·塞勒斯,曾经为此写过一部书,市场这个巨大的发动机,它带来了十九世纪最流行且有争议的看法,即,对进步的观念
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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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But, in an internal combustion engine what happens is we don't have an oxygen tank.
但是在一个内燃机中,如果我们没有氧气罐会发生什么呢。
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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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In that process there is a metabolic engine at work, and some people have an efficient engine so that the calories in get banked in the fat, other people have an inefficient engine, that is the calories get wasted as body heat and things like that, and they tend not to gain weight.
这过程中人体内有个工作着的代谢引擎,有些人的代谢引擎效率很高,热量便转化为脂肪储存起来,另一些人的效率低下,能量就以体温等形式被浪费了,因此他们就不容易发胖
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OK, so here is just an engine like what we've already seen, and I'm going to specify that this is a Carnot engine which is to say all the results that we just derived hold for this case.
这一个热机,跟我们以前见过的差不多，我们把它确定为,卡诺热机,所以我们之前得到的结果都对它适用。
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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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What you've built is an engine. You cool, you heat, you heat, you cool, you get back to the same place, but you've just done work to the environment.
这就是热机，我们用燃料或者热源加热，然后把它，与大气接触让它冷却。
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Now what I want to do is put up a specific example of the cycle that can be undertaken inside here in an engine, and we can just calculate from what you've already seen of thermodynamics.
现在我想做的是,举一个例子,来具体说明热机内部的循环过程，同时我们可以利用热力学定律进行计算,看看热力学参量发生了什么变化。
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And these verbal descriptions lead to some pictures that I put up and I'll put up again about how you might try to accomplish something like run an engine or move heat from a colder to a warmer body.
这些言语的描述有助于你们理解我讲过的,而且还要再讲的一些物理图像,比如一台发动机,是怎么运行的,或热怎样从冷的物体传到热的物体。
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