So it's a measure of how well we can do to run the refrigerator.
这是衡量,我们运行制冷机的一个量。
And so instead of defining efficiency the way you've got it written there, I'm going to define what's called something different for a refrigerator which is called the coefficient of performance.
现在我们不用,效率的那个定义,我给出一个,有关制冷机的,新的定义,叫做制冷系数。
we can run the engine backward and build a refrigerator, if you've got your lecture notes from last period your 8-9, well, they're labeled 8-9 lecture notes, I made an attempt to define something which was a little bit misguided.
现在我们可以把热机倒过来,制作一台制冷机,如果你们拿出上节课的笔记,也就是8-9节,好的,他们在8-9节,当时我试着,定义了一些,有些误导你们的物理量。
应用推荐