And all this is, is saying that when you take a mixed second derivative, it doesn't matter in which order you take the two derivatives.

麦克斯韦关系的本质是,当你考虑混合的二阶导数时，求导的顺序不影响最后的结果,现在，我们利用这些关系。

麻省理工公开课 - 热力学与动力学课程节选

You know, you mix acid and base together and the thing heats up like crazy, right.

你知道，当你把酸和碱混合起来时,这东西会像疯了一样地变热。

麻省理工公开课 - 热力学与动力学课程节选

We have the difference between conjunct music with the and disjunct music and that perhaps adds to the unsettled quality of the beethoven Fifth Symphony.

我们发现存在着不同,当级进混合着跳进时,也许正是这样的处理突出渲染了,贝多芬第五交响曲中的不安氛围

耶鲁公开课 - 聆听音乐课程节选

And yet the concepts go into my interests and people, they are literary and it's a mixture of the two that when I'm looking and if I'm successful - which is, not very much amount of time, I put into my writing, so this is something worth exploring.

这些概念成为我兴趣的一部分,人是文学的,是二者的混合,当我的观察卓有成效时,-这种时候不常见，我就将观察记述下来，这是值得探究的。

麻省理工公开课 - 电影哲学课程节选