They're both expansions. They'll both have net work done on the surroundings, but not the same amount, right.

是不同的，他们都是膨胀,都对外做功，但数量不同，对吧？

麻省理工公开课 - 热力学与动力学课程节选

Joule actually did this experiment, and he observed that for the gas expansions that he could do, that the temperature did not increase measurably.

事实上焦耳的确做了这个实验，他做到了,他能达到的最好实验要求，发现在可测量范围内没有观察到温度上升。

麻省理工公开课 - 热力学与动力学课程节选

What's happened actually if we base it in the last 25 years since the early '80s We've just had two recessions and they've been very mild by historical standards and...two--now three long expansions in between.

实际上是什么情况呢,80年代初期以来，这25年当中,我们只经历过两次经济衰退,而且在历史上算是相对轻微的,其间则是两，三次长时间的经济增长。

斯坦福公开课 - 经济学课程节选

Now let's talk about some simple observations on isothermal gas expansions.

接下来我们讨论几条,关于绝热膨胀的性质。

麻省理工公开课 - 热力学与动力学课程节选