If we calculate the change in entropy during gas mixing, we will find that this quantity is positive.

如果我们计算气体混合过程中熵的变化，我们会发现这个量是正的。

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In order to relate turning these physical knobs to this quantity, which we don't have a very good feel for, we've got to have a feel for the slopes.

为了把这些物理量同我们不是很理解的这个量联系起来，我们必须对斜率有一定的了解。

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And this quantity is termed the Bohr radius.

而这个量被叫做，Bohr，半径。

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This quantity is exactly zero for an ideal gas and we'll discover why eventually it has to do with what we mean by an ideal gas it turns out.

对理想气体它是零,这点我们接下来会知道是,为什么，这与为什么我们叫它理想气体有关。

麻省理工公开课 - 热力学与动力学课程节选

It turns out that this quantity here, which is called eta of J the Joule free expansion parameter, is not quite zero.

这个量后来被，称作焦耳膨胀系数,其实并不等于零。

麻省理工公开课 - 热力学与动力学课程节选

And if you do so, you will end up with 1.312 mega joules per mole for this quantity K.

这样做之后，对于K常量你就能得到2,1。312百万焦耳每摩尔。

麻省理工公开课 - 固态化学导论课程节选

The fear was that when this quantity of water hit the bottom, it would detach the ice from the bed on which it rested and lubricate its passage to the sea.

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"Hurricane Katrina is a relatively recent disaster, and in this case the quantity of DNA is much higher than in older bones, " he said.

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In the absence of the Keystone XL pipeline, there are no currently available alternatives for moving this large additional quantity of production to market, and at a minimum any such alternatives would be expected to have higher costs.

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