研究表明：当入选体积量的分选上限为20%时，流化床才能对颗粒混合物进行有效的分选，并且在振动条件下比在非振动条件下的分选效率略高一些。

It was shown that while the upper limit of volume fraction was about 20%, particle mixture might be significantly separated in a vibrated fluidized bed.

youdao

它只取决于压强，体积，温度这些量。

It just CARES that you know the pressure, the volume, the temperature, or any couple variables.

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从2004年起，用于电视、电脑和手机的液晶平板显示器出售量按体积计涨了十倍，同时价格下降了75%。

SINCE 2004 sales by volume of LCD flat-panel screens, used in televisions, computers and mobile phones, have increased tenfold, and their prices have fallen by three-quarters.

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That is, most processes that we're concerned with, they'll happen with something held constant like pressure or temperature or maybe volume.

这句话是说我们所关注的大部分过程，发生的时候都是保持某个量为常数,比如压强，温度或者体积。

麻省理工公开课 - 热力学与动力学课程节选

Now, if I want to change those quantities; change the temperature, change the volume, how will it change?

如果我现在打算改变这些量;,改变温度，改变体积，它会如何改变？

麻省理工公开课 - 热力学与动力学课程节选

So I can make a quantity that I'll call V bar, which is the molar volume, the volume of one mole of a component in my system, and that becomes an intensive quantity.

所以我可以定义，一个叫做一横的量，这是摩尔体积系统中,一摩尔某种组分的体积，它就变成了。

麻省理工公开课 - 热力学与动力学课程节选