Once we're there, we have to do the merge.

当我们到达这步时。

麻省理工公开课 - 计算机科学及编程导论课程节选

so we know how to do this, and we know this thing when it hit these stops, v2 the pressure with p2, and the volume was V2.

所以我们知道怎么计算，当活塞到达这两个挡板时，压强是p2，体积是。

麻省理工公开课 - 热力学与动力学课程节选