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So that's a big help. And equilibrium happens when there isn't any possible change of state that would satisfy this.
这个非常方便，当所有的变化,都无法满足这个公式的时候,系统就达到了平衡。
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So what they do is, they're describing how these thermodynamic properties change, in terms of only state functions and state variables.
他们的作用是描述,随着状态函数和状态变量的变化，系统的热力性质如何变化。
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It eradicates identity, eradicates sense of self. It's gone forever, and you can see the change in pronouns.
它超越了身份，超越了自我意识，它永远持续，我们能从代词中找到变化。
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How does that happen? You know, you've got to appeal to social forces if you're going to talk about change.
这是怎么回事？,谈到这个变化,我们必须要理解社会中的力量。
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If you were to make that change you would find that the molecule now has completely different biological and chemical properties.
如果要做出这样的变化,你会发现,分子的生物形状,和化学性质完全改变了。
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If so,how many chords are involved in this chord change and are they changing at a regular or irregular rate?
是否有和弦的转变，这次和弦转变一共用了多少和弦,他们的变化率是规则还是不规则的？
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This normal weight animal like this has its whole equilibrium thrown off, its homeostasis thrown off when its dietary conditions change.
在饮食条件发生变化时,这些正常体重动物的生理平衡被打破,于是摈弃了原来的平衡饮食
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We have the thought that these things are eternal, and indeed, beyond change, in contrast to the empirical world.
我们认为这些事物是永恒的,而且,与现实的世界相比,它超越了变化
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That doesn't solve the problem we had before though Then I'm going to append it, and keep the last change for future use.
这样没有解决我们之前的问题,所以我要给它加上一个值，让上一次的变化能够用到未来的例子中。
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Spending 20 minutes walking allows me to be in contact with what is season like, and what is the day-to-day change and the weather.
每天花上二十分钟走路，这让我,感受到了每个季节的不同，也感受到了每天的变化和每日的天气。
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But what we have here is an image of the beauty of that change, the beauty of the fact that the leaves are falling.
但是我们看到的是一幅美丽的变化的图像，叶子在飘落带来的美丽图画。
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Hess' Law states that for any chemical reaction, the energy change is path independent.
盖斯定律表明，对于任意化学反应，能量变化并非是路径依赖的。
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I became fascinated with the idea that the PC could really change a lot of things.
我深深地着迷于,个人电脑可以带来很多变化这个想法。
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And so, there's been a profound change in public presentations, public views, on race but what about implicit views? This gets more complicated.
所以人们在公众中表达他们对种族的,刻板印象发生了巨大的变化,但私下的刻板印象呢？这就复杂了。
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When you go from one set of axes to another set of axes, the numbers change.
当你将一组坐标轴变换到另一组坐标轴时,坐标值会发生变化
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It changes as fast as technology and communications change.
它变化的速度不亚于科技和传播,变化的速度。
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Now, the coefficient that relates the amount of heat in to the temperature change is obviously going to be different for these two cases.
在这两个例子中,很显然联系热量和温度变化的系数,是不一样的。
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Whereas under these conditions, these quantities, if you look at free energy change, for example at constant temperature and pressure, H you can still calculate H.
但是，在这些条件下，这些物理量，如果我们考察自由能的变化,例如在恒定的温度和压强下，我们仍然可以计算。
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unwilling to say anything about in other words, to say anything about change.
不愿意去说,也就是，任何与变化有关的内容。
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So if we have a negative change in energy for any reaction as it's written, what that actually means is we're giving off energy as the reaction proceeds.
如果我们像这里写的这样,在任何一个反应过后，得，到的能量变化为负值,这就意味着我们在这个过程中放出了能量。
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Every time they're changing You know everytime I say change, and eventually you will be hearing there's the same change, too.
他们变化的时候,你知道当我说,变,的时候,你听到的音乐也随之改变了
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But luckily for us, there's a classical equation of motion that will, in fact, describe how the electron and nucleus change position or change their radius as a function of time.
但幸运的是，有一个,经典方程描述了电子和核子,位置或者它们直接的距离是,如何随时间变化的。
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This Is our condition for spontaneous change.
这就是自发变化的条件。
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What are the ramifications of the proposed change. Will it break other things?
可能的变化有什么分支？,它们会不会导致其它错误？这是件大事？
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That is to say I can now reroute that sodium plus chlorine reaction and go a different way, but I still end up with the same change in energy.
也就是说，我可以重新定义一种,钠与氯的反应途径,从另一种途径来实现反应，但是能量的变化过程相同。
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And that is that the energy levels themselves change with electron occupancy.
就是能级本身,也会随着电子的排布发生变化。
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Sometimes that subtle change can lead to a big change in the function of the protein.
有时候,蛋白质在结构上的小小改变,会导致其功能发生巨大变化
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PROFESSOR: No. The goal does not change, it's still the same goal. What changes?
教授：不，我们的目标没有变，那变化的是什么呢？
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