It's called the canonical partition function.
称为正则配分函数。
So last time, then, you saw how from the canonical partition function, you could get something like the energy.
上节课我们看到了如何,从正则配分函数导出，内能等量。
Q And then, big Q, the canonical partition function for the whole system, it's something that we've been through before.
然后，大，整个系统的正则配分函数，这是我们之前探讨过的。
So it becomes interesting, then, to figure out, how can we write the Helmholtz free energy in terms of the canonical partition function?
这就让我们开始思考，要怎么来表示亥姆霍兹自由能,用正则配分函数？
So now we can just write out the configurational partition function for the molecules and also the canonical partition function for the system.
那么现在我们就能写出,分子构型的配分函数,和系统的正则配分函数。
Q And now we have our capital Q, our canonical configurational partition function.
现在我们有我们的大，我们的正则构型配分函数。
Q And now we have our capital Q, our canonical configurational partition function.
现在我们有我们的大，我们的正则构型配分函数。
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