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。

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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。

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