V2 Now we could put stops here at V2, but this piston would just kiss the stops.

现在我们可以把挡板放在这里，这时体积是，活塞会刚好碰到挡板。

麻省理工公开课 - 热力学与动力学课程节选

How do we know this always stops? I mean, I ran three trials here, and it did. But how would I reason about, does this always stop?

我指的是我在这儿试了三次，它都停了，那这是为什么呢？,它总是会停下么？

麻省理工公开课 - 计算机科学及编程导论课程节选