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The U.S.state of Colorado is an ideal destination for anyone interested in hunting for dinosaur fossils.
VOA: standard.2009.12.08
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OK, this is only true for an ideal gas, and we went through that mathematically where the, with a chain rule.
这一关系只对理想气体成立，上节课我们,用链式法则推导出了这一关系。
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It's definitely not an ideal situation. Generally don't do as well on those.
这当然不是什么理想的情况。这样的考试一般考得不怎么好。
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(Speech) Gabe says Japan has been an ideal partner to the U.S.for so long.
VOA: standard.2009.11.11
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Now, we saw before, or really I should say we accepted before, that for an ideal gas, u was a function of temperature only.
我们已经看到,或者说我们已经接受这样一个事实，即理想气体的内能只和温度有关。
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And that's the type of thing that we get when we start deforesting an area, and deforestation creates the ideal habitat."
VOA: standard.2010.06.17
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In an ideal world, where you can borrow and lend freely, an individual could choose consumption along any point on this line.
在理想情况下,你可以随意借贷,每个人都可以将这条线上任意一点,作为自己的消费额
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But even an ideal like self-reliance I can remake my world, I can be anything I want is changed by the Market Revolution.
甚至是理想主义的自主,我能改造我的世界,我能成就任何事,这种观念也被市场革命改变了
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Their New England, importantly, is not an ideal, pastoral place.
他们的新英格兰，非常重要，不是一个理想的田园的地方。
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And he acknowledges here finally that the ideal of virginity is an ideal for which women are typically praised - and of course this goes without saying.
最后他也承认,关于妇女通常被赞美的童贞理想只是空想,当然这是不言而喻的。
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I mean, in an ideal society everyone's needs would be met but here we're arguing what do we deserve as a society and, yeah.
理想社会里，每个人的需求都能满足,但我们所讨论的是,作为社会一份子，我们应得的是什么。
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And again even today the expression " "Athenian democracy" connotes an ideal of the most complete form of democratic government that has ever existed.
它是座民主之城，时至今日,“雅典式的民主,仍意味着有史以来,最理想的完整民主政府型态。
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All the supreme court justices would share our social values. And most importantly, our programs would work the first time we typed them. By now you may have noticed that we do not live in an ideal world.
符合我们的社会价值观,但是最重要的是，我们写好的程序，第一次就能顺利运行,如今你可能已经注意到了,我们生活的并不是一个理想的世界。
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That for an ideal gas it has to be the case that there's no volume dependence of the energy.
我们可以直接推导这个结果,即证明对理想气体，内能和气体体积无关。
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You're allowed Cv comes out here for this adiabatic expansion, which is not a constant volume only because this is always true for an ideal gas.
绝热过程写下,这个式子是因为它对理想气体都成立，并没有用到等容过程的条件,只用了理想气体的条件。
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B=0 There's going to be some temperature where B is equal to zero. In that case, your gas is going to look awfully like an ideal gas.
在某个温度,这时，实际气体的表现，十分接近理想气体,高于这一温度它是正的。
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The 430 years number is also something of an ideal number.
而430年也是一个理想化的数字。
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PROFESSOR BAWENDI: So, for an ideal gas, the isothermal is the easy one because the energy doesn't change.
对理想气体，等温过程最简单,因为能量不变。
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It's true for any gas, and if I remove this limit here, r t is equal to p v bar, I'm going to call that an ideal gas.
这样的气体被称作理想气体,这就是理想气体的性质，理想气体的涵义是什么？
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And now we're going to specify, we're going to do a Carnot cycle for an ideal gas.
我们具体地指定一个卡诺循环，这是理想气体。
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So for an ideal gas then, dH/dp under 0 constant temperature, that has to be equal to zero.
所以对于理想气体,偏H偏p在恒温下，等于。
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But this is only true for an ideal gas and it's approximately true for other things.
但这只对,理想气体城里。
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dq It's an ideal gas in adiabatic expansion 0 dq is equal to zero.
说明,等于。
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is always equal to for an ideal gas? Cv dT right.
对吧？
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So it's, this is just the integral pdv And it's an ideal gas, isothermal, right.
从一点到二点的,的积分。，from，one，to，two，of，p，dV。,这是理想气体，恒温过程，好的。
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See, this is the property of an ideal gas.
它意味着气体分子。
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.. The problem is again the ideal-- they're trying to work toward what I think of an ideal that we see in finance-- 1 mainly, the perfect correlation of consumption and the elimination of risk--we all help each other.
问题又回到了理想-,他们为之奋斗的这种理想状态,如果用金融学的理念来解读-,就是消费与风险消除的相关系数为,即完全正相关，所有人都互助互利。
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Right now we told you Joule did all these experiments and he found out that for an ideal gas, that the limit in and ideal gas 0 case was that the eta J was equal to zero.
现在我告诉你们焦耳,做了所有这些实验,他发现对于理想气体,在极限情况下理想气体的ηJ等于。
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If you have a real gas and you write du is Cv dT and your path is not a constant volume path, then you are making a mistake. But for an ideal gas, you can always write this. And this turns out to be very useful to remember.
对于真实气体，如果其变化过程,不是恒容的，du=Cv*dT就不成立，但对于理想气体,这条规则永远成立,这一点非常有用，请记住。
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The last time you saw that for an ideal gas, the energy only cared about the temperature.
上次你们知道了，理想气体的能量只与温度有关。
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