So what they do is, they're describing how these thermodynamic properties change, in terms of only state functions and state variables.

他们的作用是描述,随着状态函数和状态变量的变化，系统的热力性质如何变化。

麻省理工公开课 - 热力学与动力学课程节选

So, these on-changing properties that describe the state of the equilibrium state of the system are called state variables.

这些描述,系统平衡态的,变化的属性,就叫做状态变量。

麻省理工公开课 - 热力学与动力学课程节选

If I wanted to use print as a variable name, how do I get the system to decide gee, do I want print as a value for something, or do I want print as a command?

如果我把print当做一个变量名，我如何让系统来决定，我是要把print当做一个命令来用呢，还是要把它当做一个变量名来用呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

So the state variables describe the equilibrium's state and they don't care about how this state got to where it is.

状态变量,描述平衡态，它们并不关心,系统是如何演化成这样的。

麻省理工公开课 - 热力学与动力学课程节选

These are physical knobs that are available us as experimentalists. And so when we turn these knobs on our system, we want to know how the enthalpy is changing for that system.

这些都是我们做实验可,以得到的物理变量,所以当我们在系统中,改变这些量的时候。

麻省理工公开课 - 热力学与动力学课程节选

So the system will not be described by a single state variable during the path.

因此系统将不能被,路径上的单一状态变量描述。

麻省理工公开课 - 热力学与动力学课程节选

We're going to find other properties that do care about the history of the system like work, that you put in the system, or heat that you put in the system, or some other variables But you can't use those to define the equilibrium state.

我们还会发现其他一些,与系统的历史有关的性质,比如你对系统做的功，或者你向系统传递的热量，或其他的变量,但你不能用它们,来定义平衡态。

麻省理工公开课 - 热力学与动力学课程节选

It turns out that when you're talking about macroscopic properties of matter, you don't need very many variables to describe the system completely thermodynamically.

实际上,当你谈及物质的宏观性质时，你并不需要很多变量才能从热力学上,完整地描述这个系统，’

麻省理工公开课 - 热力学与动力学课程节选