OK, notice we have two inexact differentials and exact differentials. This is a condition.

好，注意到这里面有两个不准确微分量,和一个准确微分量，这是结论。

麻省理工公开课 - 热力学与动力学课程节选

The reason for inexact doesn't mean it's a crummy measurement, t means that it's path dependent, and so the value of this integral depends on how you get from one to two.

这是因为它是,与积分路径有关的，因此这里的积分值，取决于从一端到二端的,具体路径。

麻省理工公开课 - 热力学与动力学课程节选

And this little slash here means an in inexact differential.

请注意这里的小横杠,说明这不是一个准确的微分。

麻省理工公开课 - 热力学与动力学课程节选