Today,Everest has been climbed from all of its sides and from most of its possible paths.

VOA: special.2010.06.30

All right, now suppose that I took these two paths and coupled them together.

现在假设我把这两条路径结合起来,这是路径1做的功。

麻省理工公开课 - 热力学与动力学课程节选

All right, so let's go again what our paths are.

现在来在图上看看这两条路径。

麻省理工公开课 - 热力学与动力学课程节选

So we're going to start at one, T1 and this is going to be in isotherm at temperature T1, and all the paths here are going to be reversible.

我们从一开始，这是个绝热恒温过程，温度是，所有路径都是可逆的。

麻省理工公开课 - 热力学与动力学课程节选