So, that's a homogeneous system, one phase. You have to know if your system is an equilibrium system or not.

所以这是个均匀系统，只有一个相，你得知道你的系统,是不是个平衡系统。

麻省理工公开课 - 热力学与动力学课程节选

we'll start in on discussing chemical equilibrium, does deriving where they lie phase equilibrium?

我们就要开始讨论化学平衡，推导相平衡在什么位置？

麻省理工公开课 - 热力学与动力学课程节选