也就是说，这个热机的效率，比卡诺热机低。

So in other words, this engine is running less efficiently than my Carnot engine.

youdao

这一个热机，跟我们以前见过的差不多，我们把它确定为，卡诺热机，所以我们之前得到的结果都对它适用。

OK, so here is just an engine like what we've already seen, and I'm going to specify that this is a Carnot engine which is to say all the results that we just derived hold for this case.

youdao

这个热机，叫做卡诺热机。

So, the engine that I'm going to illustrate is called a Carnot engine.

youdao

And on this side, we're going to write out an engine, and we're going to say this is a Carnot engine.

在这边，我们画出一个热机，是卡诺热机。

麻省理工公开课 - 热力学与动力学课程节选

So, what I want to do is make a new engine which really just consists of two engines, side by side.

我们先构造一个,由两个热机组成的热机，并排排列。

麻省理工公开课 - 热力学与动力学课程节选

So, the total work that we can get out must be zero, out of the whole sum of them.

因此，我们可以从这两个热机,得到的总功，一定是零。

麻省理工公开课 - 热力学与动力学课程节选