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Other recent vampire movies include the American film "Cirque du Freak: The Vampire's Assistant", the Swedish film "Let the Right One In" and the Korean film "Thirst."
VOA: special.2010.01.20
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And in particular let's look at, for example, du/dV du/dV at constant temperature.
更特殊一点考察，恒定温度下的。
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du, it's an ideal gas. So this is Cv dT and of UB course we can just integrate this straight away.
因此这是CvdT，当然我们可以,直接算出这个积分，那么△
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I suggested that there was a critical response to those issues that was somewhat negative, and I want to sort of remind you of that from W. E. B. Du Bois's review of Black Boy when it came out.
对于负面问题,有个关键评述，大家看一下,关于《黑孩子》的评论。
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dq=0 But if it's adiabatic, then dq is equal zero, du=dw and for an adiabatic process, then du is equal to dw.
但如果它是绝热的，那么，因此对于绝热过程。
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du But if it's not reversible, it's not du.
但如果这不是可逆过程，它不等于。
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du It's an ideal gas, and that's equal to w1 prime.
等于CvdT，du，is，Cv，dT。,因为是理想气体，所以等于w1一撇。
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So we immediately get du at constant S and V is less than zero.
这样我们马上就得到以下结论：,在等熵，等容条件下dU必须小于零。
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du We can talk about du for the system well, w that's q plus w.
我们可以讨论它的，等于q加。
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That's where that term comes from, du/dV dV/dT.
乘以偏V偏T，p恒定，这项的来源。
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