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When we have an isolated system, the criterion that determineswhether something happens spontaneously is the entropy has to increase.
对于孤立系统,决定一个过程是否自发发生的判据为：,熵必须增加。
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Unity was difficult. Being somewhat isolated, the inhabitants of each region developed a distinctive economic and cultural character.
团结很困难，它有一点孤立，每一个地域的居民都发展起来,有了各自经济文化特点。
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The system can be an open system, or it can be a closed system, or it can be isolated.
系统可以是开系，可以是闭系，或是孤立系。
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And so, when she comes to be isolated in this way, she can finally see and meditate upon, in a new way, all those systems of communication.
当她这样越来越被孤立的时候，她能够以一种新的方式，去思考那些交流的系统。
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With the United States quite isolated, not reaching out to Canada and Mexico, which is one thing we need to be doing for energy and economic reasons.
而美国则被孤立了，不和加拿大，墨西哥打交道，事实上这是我们现在该做的,为了能源问题和经济发展。
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The Greeks are isolated during this period.
在这段时期希腊人被孤立了
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In very severe cases, it can even defile some common objects, and in those cases, the source of impurity might have to be isolated or excluded if necessary.
在一些非常严峻的情况中，它会玷污一些普通的事物，在这种时候，不洁之源,也许只能被孤立，严重的话需要驱逐。
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Well, dq is equal to zero and dw is equal to zero dq=0 dw=0 because it's isolated.
隔离的孤立系统,这时。
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And just like we saw before for the case of entropy in an isolated system, now we have something we can calculate.
就像我们前面看到的,孤立系统的熵一样，现在我们有一些可以计算的东西。
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It's insulated. It's a closed system. In fact, it's an isolated system. There's no energy or matter that can go through that boundary.
系统指的，是盒子里的东西,它是封闭孤立的。
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OK, what we'll see shortly is that this will allow us to see that for an isolated system the entropy never decreases.
好，我们过一会,会看到,这将导致孤立系统的熵,永远不会减小。
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Most chemical changes, most physical changes don't happen in isolated systems.
但是大部分的化学反应,并不是发生在孤立系统中的。
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OK, that's our familiar isolated system.
好，这是我们的孤立体系。
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In other words, we need criteria for equilibrium under more general conditions than the ones that we've dealt with so far, than the one set of conditions that we've dealt with so far, which is isolated system.
换句话说,相比我们目前为止,考虑和处理的问题，我们需要更一般条件下平衡的判据,我们目前，只考虑了孤立系统。
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Change in entropy is greater than zero for an isolated system.
对孤立系统,熵的变化是大于零的。
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We could have isolated.
另外一种约束是孤立系统。
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In fact, the thermos is an isolated system.
实际上它是个孤立系。
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