PATH designed a foil pouch that could keep the medicine stable for up to two months.

VOA: special.2010.05.24

That's the some of delta u in these two paths and if we look at delta u in just path A, it's zero.

这是这两条路径△U的和,如果我们要看路径A的△U，它也是零。

麻省理工公开课 - 热力学与动力学课程节选

And our job is to find out what is the mathematical description of this path, this line in p-V's case that connects these two point.

我们的任务,就是找出，描述这条曲线的方程。

麻省理工公开课 - 热力学与动力学课程节选

Rakotoarisoa says Madagascar is now on the path back to legitimacy because it is entering a transition between two democratic regimes.

VOA: standard.2009.03.20

The reason for inexact doesn't mean it's a crummy measurement, t means that it's path dependent, and so the value of this integral depends on how you get from one to two.

这是因为它是,与积分路径有关的，因此这里的积分值，取决于从一端到二端的,具体路径。

麻省理工公开课 - 热力学与动力学课程节选

You could take a continuous path, where you have an infinite equilibrium points in between the two, a smooth path, whereyoudrop pressureand temperature simultaneosly in little increments.

你可以选择光滑的连续路径，在初末态间有,无数个平衡态的点，压强和温度同时一点,一点地下降。

麻省理工公开课 - 热力学与动力学课程节选

So, I could have two steps in my path.

我的路径中有两步。

麻省理工公开课 - 热力学与动力学课程节选

So, these two quantities, again, are path dependent.

这两个物理量，再次。

麻省理工公开课 - 热力学与动力学课程节选

And the first law says, well heat and work are different forms of energy, and we can add them, and the path dependence of these two things is somehow cancelled in the fact that we have this internal energy.

热力学第一定律说，热和功是能量的不同表现形式，我们可以把它们加起来,它们与路径相关的部分相互抵消,我们就有了内能。

麻省理工公开课 - 热力学与动力学课程节选