So there's going to be a line that's going to connect the initial point to the final point, and that line mathematically is not going to be the same as this one here.

连接绝热过程,初末态的曲线的方程，和等温线的方程,也不会相同。

麻省理工公开课 - 热力学与动力学课程节选

So we'd really like to be able to find some sort of equation of state, or some sort of rather function of state that's going to relate the heat going in or out of the system with that function of state, because this isn't going to do it.

所以我们真的想要去,找到一些态方程或者态函数,通过这个态函数可以表示热量,在系统与外界的交换,因为这个不能表示它。

麻省理工公开课 - 热力学与动力学课程节选