It's the constant enthalpy process that we're looking at. This we can do experiments on.

是一个焓不变的过程,这个量我们可以做实验。

麻省理工公开课 - 热力学与动力学课程节选

So that you do the experiment, you see the phenomenon, and then you see the visualization that adds things to the phenomenon that you normally can't see that are there whether or not sealed.

因此我们通过做实验，观测到现象，然后看到直观化的过程,它会将你平时看不见的物质,添加到这个现象中,让你感觉它本来就在那儿。

麻省理工公开课 - 媒体、教育、市场课程节选

In fact in spite of the way we tell our story we actually changed the assignment.

尽管实验的过程是这样,可我们实际做了些改变。

麻省理工公开课 - 媒体、教育、市场课程节选