Now, let's just look at our efficiency.

现在让我们看看效率。

麻省理工公开课 - 热力学与动力学课程节选

And I just want to write those because what I really want to get at is what's the efficiency of the whole thing?

我写出这些的原因,是我真正想得到的是,它的效率？

麻省理工公开课 - 热力学与动力学课程节选