So if you start and end at the same place, they've got end at the same place that they started.

所以如果你开始和结束于同一个位置，它们最终的状态与开始时会是一样的。

麻省理工公开课 - 热力学与动力学课程节选

For example, we had a recession that started here -I believe that was '48--and then it ended in '49.

比如我们来看这一次衰退,大概从48年开始,于49年结束

耶鲁公开课 - 金融市场课程节选

Cv The only difference is it'll be Cp instead of Cv, B but there it is for pathway B. There it is for C a pathway C. So the state functions that we're familiar with are doing what we expect they ought to be doing, right? If you go around in a cycle, starting and ending at the same place the state functions have to stay the same.

是Cp而不是，这是路径,这是路径,所以我们熟悉的态函数的行为,正与我们预期的相同，对吧？,如果你沿着循环走一圈,开始和结束于同一个位置。

麻省理工公开课 - 热力学与动力学课程节选