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It's much more relevant to set our zero point energy as the separation of a bond in terms of talking about the reactions that we'll usually be dealing with here.
更好的是把零点能定在,键断裂的时刻,在讨论化学反应的时候,而我们以后将经常遇到化学反应。
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And when that becomes relevant in a problem set, we'll point you at the appropriate documentation.
在习题集中如果你们遇到相关的问题，我们会提供适当的文档资料。
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It's almost as if the entire point of a pastoral is that it is set in a world that neither the urbane poet nor the urbane reader has actually any real experience with.
似乎田园诗的全部意义就在于它的背景设在田园,而不管是都市诗人还是都市读者,都没有任何实际的田园经历。
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And when I do this test, what I want to do, is say I'm going to pick the middle spot, and depending on the test, if I know it's in the upper half, I'm going to set my start at the mid point and the end stays the same, if it's in the front half I'm going to keep the front the same and I'm going to change the endpoint.
如果我知道目标数可能，再比中值点大的区间里，我可能就会把开始点设为中值点,而尾点不变，如果在小的那个区间里,就保持开始点不变而把尾点设为中值点，你们可以看到这儿的代码,就是这么做的,对不对？它是怎么做的？
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pV So there is an arbitrary set point that needs to be defined, right? Because what you actually measure in the lab are changes in enthalpy, just like what you measure when you look at energy change of some sort, you measure the change in energy, right.
焓也是一样，焓是U加,所以需要定义一个任意的设定值,对吧？因为实际上你在实验室里,测得的是焓的改变,就像你在研究某种能量变化时，所测量的那样，你测量的是能量的改变，对吧。
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We've got some chords set out and we're going to-- we've got some chords set out here and we're in the key of C at this point, and we're going to hear Beethoven go to a tonic chord, then a sub-dominant chord, then a tonic chord, then a dominant chord and so on.
我们看到有一些和弦-,而我们现在在C调的位置上，然后听贝多芬的主音和弦，然后是次属音和弦，然后是主音和弦，接着是属音和弦，如此往复。
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He returns us to the lowly perspective that Galileo had when he set up his telescope in that other valley, Valdarno, and it's this lowly vantage point that's beautiful in part because it's a fallen perspective, not in spite of the fact that it's a fallen perspective.
他让我们回到伽利略和他在另一个村庄,瓦尔达诺设置望远镜的较低的层面，这个低下的认为这个层面存在美感的观点,是因为这是一个堕落的观点，而不是因为堕落的事实。
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