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dT/dp is mu JT. So for a real gas like air, this is a positive number. It's not zero.
所以对于像空气这样的真实气体，这是一个正数，不等于零。
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If it is, in fact, positive, then we're going to go in here, but now notice what we're doing here.
如果这个数实际上是个正数，那么我们就到,这里面来，但是请注意我们在这做了什么。
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So in fact this is indeed a positive number so we didn't make a mistake in our signs.
因此等式的右边也是正数,两边符号吻合。
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That's what the optimist thinks-- not just for themselves individually, but for everybody, the total is always positive.
那是乐观主义者的想法-,而且不但是对他们自己，而是对所有人，等式结果总是正数。
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So zero is supposed to be neither positive nor negative, and here I am just simplifying and saying it's actually going to be negative.
所以0不是一个正数，也不是负数，在这里我只是简单地,说明它实际上会是负数。
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That quantity in parenthesis, I have a mass which is a positive number. Something raised Something raised to the fourth power has got to be positive.
顺便说一句,质量这个量是个正数,四次方的值,肯定是正数。
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It could be positive or negative or complex, but it's just an ordinary number.
它可以是正数,负数或者复数,但它仍然只是一个普通的数
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So that's just a little bit of a check for yourself, and it should make sense because what you're doing is you're calculating the difference between energy levels, so you just need to flip around which you put first to end up with a positive number here, and that's a little bit of a check that you can do what yourself.
所以你们总要确保括号，离得这项是正的，这是你们自己,可以做的检查，这事很有道理的，因为你们做的是计算能量差,所以你需要调整顺序来保证一个正数，这是你们自己可以做的检查。
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You might say that optimists are people who think that for everybody in every case, in every circumstance, the total is always positive.
乐观主义者认为,任何人在任何情况下，在任何环境里，等式结果永远是正数。
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By the way, just to think about it a little bit, it's a positive number.
此外，再多考虑一下，他是一个正数。
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Something raised to the second power has got to be positive.
二次方的东西,也一定是正数。
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No positive number, no negative number. That's a zero.
没有正数，没有负数，只是个零。
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Everything inside the parenthesis is positive, so minus a positive number.
而其中间的一切,也是正数，所以正数的相反是负数。
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You picked a positive number.
你选择了一个正数。
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So, those are modest theories-- positive value for life, but it can be outweighed.
所以，这些是保守的理论-,活着是正数，但是它可以被超越。
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Against that, you can imagine someone who thinks being alive per se is so incredibly valuable that no matter how horrible the contents are, the grand total will always be positive.
与之相反，你可以想象有些人会认为,活着本身有着巨大的价值,不管生活内容有多糟糕，总和都会是正数。
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Now, notice that since we are adding extra positive facts, extra positive points, for the fact that you're alive, even if the contents subtotal is negative, the grand total could still be positive.
由于我们添加了额外的积极事物，额外的正数，因为你活着，就算生活内容的部分总和是负数，但它的总和可能仍然是正数。
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Because, of course, if you're a modest, if you accept the modest version of the valuable container theory, then if the contents get bad enough, that can outweigh the positive value of life.
因为如果你是个保守者，如果你接受保守价值容器理论，那么如果生活内容极为糟糕，它便超越了活着的正数。
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And for some people the balance is positive, " for some people perhaps the balance is negative, " whether for their life as a whole " or for certain stretches of their lives."
对某些人，结果是正数，“对某些人结果是负数，“不管是他们的一生,“或者他们生命的一段时间“
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10 Even if your content subtotal was negative ten, that doesn't mean you're not better off alive, because negative ten plus the extra hundred points for the mere fact that you're alive is still going to give you a positive total, 90 plus 90.
就算你的生活内容部分总和是，那也不意味着你活得不够好，因为-10加上额外的100分说明了,你活着得到的总和仍然是正数，超过。
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.. Because we also have to add in, if we accept a valuable container theory, we also have to add in some extra positive points to take account of the fact that, well, at least you're alive or have the life or a person-- or whatever it is that you think is valuable in and of itself.
因为我们还要添加，如果我们接受有价值容器理论的话，我们还要添加一些额外的正数,你要考虑，你至少活着或者拥有人的生命-,或任何你觉得它本身有价值的东西。
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Because we've got one q1 and then we're adding q2 over q1 to it, but we've got negative q2 is a positive number.
这是因为这里有个,然后加上了q2除以，但是我们知道负的q2是个正数。
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I'm pressing on the gas. So I expect that to be a positive number. The pressure is constant 0 p. The V goes from V1 to zero.
我们对气体加压,所以这应该是一个正数,压强是常数，p，V从V1变成。
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dT/dp is positive. dT/dp is positive.
偏T偏p是正数，好的这就是。
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