空气为混合气体。
When we have a mixture, and we're going to start with ideal gases.
当我们有一个混合物时，我们从理想气体开始讨论。
Air is a mixture, not a compound of gases.
空气是气体的混合物，不是化合物。
We call air a mixture of gases.
我们把空气称为气体混合物。
Air, as we know, is a mixture of gases.
正如我们所知道的，空气是各种气体的混合物。
The air is made up of a mixture of gases.
空气是由多种气体组合而成的。
The air is made up of mixture of gases.
空气由不同的气体混合而成。
Dry air is a mixture of gases, most of which is nitrogen by volume.
干燥空气是多种气体的混合，按体积计，大部分是氮气。
Air is a mixture, not a compound of gases.
我们把空气称为气体混合物。
Air is made up of a mixture of gases.
空气是由多种气体混合组成的。
As is known to all, air is a mixture of gases.
大家知道，空气是多种气体的混合物。
Air is not a specific gas: rather, it is a mixture of many gases.
空气不是一种特殊的气体，而是由许多气体混合成的。
Air is not a specific gas: rather, it is a mixture of many gases.
空气不是一种特殊的气体，而是由许多气体混合成的。
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