Just to be clear, so it's heat extracted over the work in.

这等于取出的热量除以做的功，我重写一下这个式子。

麻省理工公开课 - 热力学与动力学课程节选

So you know, what the second law is doing, in other words, it's putting these restrictions on how well or how effectively we can convert heat into work in the case of the engine, or work into heat extracted in the case of a refrigerator.

你们知道，在热机中，热力学第二定律的作用，换句话说，就是给热量,转化为功的效率,施加限制,或在制冷剂中，对抽取热量,进行限制。

麻省理工公开课 - 热力学与动力学课程节选

These plots are extracted from these two regions and represent trials in which you're about to buy a product or you are about not to buy a product.

这些图是两个区域的切片,分别代表着受试者是否会,购买商品的不同试验。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选