I mean we can, we can sort of understand why OK, the total energy, if we measure it, we measure a process which is not reversible.

例如我们易于理解为什么，当试图测量一个不可逆系统的总能量，给出的或许。

麻省理工公开课 - 热力学与动力学课程节选

OK. The process of writing is exercising both halves of your brain, and it's actually helping you learn, and so taking notes is really valuable thing.

好的，记笔记的过程同时锻炼了,你的左右脑，而且实际上帮助了你的学习，所以记笔记真的是一件特别有价值的事情。

麻省理工公开课 - 计算机科学及编程导论课程节选

OK, now we can do the process in two steps.

好，我们可以把过程分为两步。

麻省理工公开课 - 热力学与动力学课程节选

OK, so for a constant volume process, du we can write du, partial derivative of dT u with respect to T at constant V, dT, dv plus partial derivative of u at constant V, dV.

好，对于一个恒定体积的过程，我们可以写出,等于偏u偏T，V不变，加上偏u偏V，T不变。

麻省理工公开课 - 热力学与动力学课程节选