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So, it's a trivial matter, by looking at what is the weight and how far does it drop, to say OK, how much work is done by the paddle wheel.
好，让我们看看重物的质量,以及它下落的距离，就知道桨轮做了多少功。
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now I'm really fantastic at drawing this mechanical device, but you can imagine that dropping a weight can cause a paddle wheel to turn.
机械装置的时候,我真的很着迷，你可以想象,当重物掉落的时候会带动桨轮旋转。
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Sometimes there were interesting little problems that emerged and one of those has to do with the use of chariots in warfare.
偶尔会有一些有趣的小问题出现,这往往和战争时使用的二轮战车相关
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Then, when much blood had clogged their chariot-wheels, I would go up and wash them from sweet wells, Even with truths that lie too deep for taint.
因此当大量的血液凝固，阻塞了战车前进的轮之际，我就要起身，用甘甜清澈的井水刷洗猩红，甚至是用深深隐藏在污点后的事实。
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Children get diseases from a class of viruses called rotaviruses, for which we have no vaccine, and- and so no way to protect them.
儿童因轮状病毒而生病,而我们没有针对这种病毒的疫苗,所以,所以我们没有办法保护儿童
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Round three, go. And this spells?
第三轮，开始，它代表什么呢？
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People had great fear of being left out of the real estate market.
人们十分担忧,在这轮房地产浪潮中没能占到先机
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Well, Homer has his heroes using chariots and we know that chariots were used in warfare in the Bronze Age around the Mediterranean Sea.
荷马史诗》的主角们所使用的战车,我们知道在青铜时代的地中海地区,二轮战车被广泛运用于战争
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And this is in an isolated, in an adiabatic container.
这应该是个很简单的问题，桨轮处在一个与外界隔离额绝热环境中。
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Now you could do a similar sort of thing, but instead of having a candle, you have a paddle wheel, and the paddle wheel is spun by a weight that's dropping from here to here.
那接下来可以做一件类似的事，但不再是蜡烛，我们将它换成一个桨轮，桨轮末端拴一个重物,它可以从这掉落到这。
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I think the boom was driven by fear.
这种担忧正是这轮繁荣的幕后推手
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the abuse is, you know, it's not quite right, it depends upon whether it's all ready, but you can see in either case, after 12 steps, 2 runs through this and down to a problem size b over 2.
在12步以后，两轮过后，这个问题的范围b被缩小了一倍，这为什么很不错呢？,这意味着再来12步。
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