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• We're not going down on the coexistence curve any more.

我们现在不在共存曲线

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• But first let me remind you what the coexistence curve is.

首先提醒一下什么是共存曲线

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• And then over here, we look at the gas phase coexistence curve.

然后这儿，我们共存曲线

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• And once we reach point two, then we find a coexistence curve.

一旦我们到达第二条同时存在的曲线。

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• Because, remember, what we said is let's raise the pressure until we just start being on the coexistence curve.

因为请记住我们提高温度直到到达共存曲线。

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• So this is yB of one. It's the same as yB of two, I'm just raising the pressure enough to just reach the coexistence curve.

所以yB，与yB相同，我们把温度提高足够高以致达到共存曲线

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• If you just barely get to the coexistence curve, of course then you could see how much material you've got in the two phases.

如果只是刚好到达曲线当然那样看到相中，各有多少物质

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• But the point is, the derivation doesn't yield a linear relationship for either the gas or the liquid part of the coexistence curve.

关键点推导结果不是线性对于共存曲线气体液体部分都是这样。

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• So then, in a practical way, it's possible to walk quite far along the distillation, the coexistence curve, and distill to really a high degree of purification.

如此反复，实际过程中，可以沿着共存曲线蒸馏很久，然后提纯一个很高纯度。

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• So then, in a practical way, it's possible to walk quite far along the distillation, the coexistence curve, and distill to really a high degree of purification.

如此反复，实际过程中，可以沿着共存曲线蒸馏很久，然后提纯一个很高纯度。

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