OK, now, we're going to look at the internal energy, and we're going to pretend that it is explicitly a function of temperature and volume.

好，我们接下来看看内能，我们假设,它是温度和体积的函数。

麻省理工公开课 - 热力学与动力学课程节选

But it's allowed to say the internal energy is a function of temperature and volume.

但是我们也可以说内能,是温度和体积的函数。

麻省理工公开课 - 热力学与动力学课程节选

We have discovered that this partial derivative that appears in the definition, the abstract definition of the differential for internal energy, is just equal to the constant volume heat capacity.

我们还发现,这个偏微分出现在了，内能的偏微分,定义式中，它也就是热容。

麻省理工公开课 - 热力学与动力学课程节选