They put great pressure on lawmakers to change the law.

VOA: special.2010.06.17

And we combine this with first law, which for the case of pressure volume changes we write as this.

结合第一和第二定律,对于压强体积功我们可以这样写。

麻省理工公开课 - 热力学与动力学课程节选

We looked at pressure change before, actually, in discussing the third law, the fact that the entropy goes to zero as the absolute temperature goes to zero for a pure,perfect crystal.

在讨论热力学第三定律的时候，我们讨论过压强变化,即对于纯净的完美晶体,随着温度下降到绝对零度熵也变成零。

麻省理工公开课 - 热力学与动力学课程节选

OK, you use the ideal gas law, etc., then you get a relationship that connects the pressure and the temperature, like here we got a relationship that connected the temperatures and the volumes together.

我们会得到，一个联系初末态,的压强和温度的，关系式,就像这个联系过程中。

麻省理工公开课 - 热力学与动力学课程节选