This is an abstract and powerful mathematical statement of the first law of thermodynamics.

这是热力学第一定律的一个抽象,而且具有很强数学性的表述。

麻省理工公开课 - 热力学与动力学课程节选

I'll show those again, but what I want to do mostly today is try to put a mathematical statement of the second law in place that corresponds to the verbal statements that we saw last time.

今天我还将跟你们讲这些，但今天的重点是,对上次口头表述内容中的热力学,第二定律,的数学推导,我们上次看到的。

麻省理工公开课 - 热力学与动力学课程节选

People have done experiments through the ages, and they've accumulated the knowledge from these experiments, and they've synthesized these experiments into a few basic empirical rules, empirical laws, which are the laws of thermodynamics.

很长的时期内，人们做了大量的实验，从这些实验中积累知识,将这些实验总结成一些基本的经验法则和定律，这就是热力学的定律,然后，人们给这些定律添加，数学架构。

麻省理工公开课 - 热力学与动力学课程节选