And in the end, when it's at equilibrium, and you look and you'd make a measurement, right, you could do spectroscopy.

当他处于平衡状态的时候，你可以做测量，比方说做光谱分析。

麻省理工公开课 - 热力学与动力学课程节选

p1 I said let's do this slowly enough that this p1 is in equilibrium with this p1, but not so slowly that this pressure is equivalent to that pressure.

我曾说过我们足够慢地使这边的1,与这边的p1平衡，但是没有慢到,这里的压强等于这里的压强。

麻省理工公开课 - 热力学与动力学课程节选