His comments reflected what other officials have said that ending the F-22 program is just one part of the effort to shift the focus of U.S.defenses away from what they see as the relatively remote possibility of a war with a major power and toward the types of smaller-scale conflicts of recent years.

VOA: standard.2009.07.21

So, I just want to write a few examples down with a few values for delta u or delta H or delta S, and see whether we can get any clues from what we see.

我先写一些例子,例子包含一些内能，自由焓和熵的变化数值，然后看从中,我们能不能得到一些启示。

麻省理工公开课 - 热力学与动力学课程节选

So, I just want to write a few examples down with a few values for delta u or delta H or delta S, and see whether we can get any clues from what we see.

我先写一些例子,例子包含一些内能，自由焓和熵的变化数值，然后看从中,我们能不能得到一些启示。

麻省理工公开课 - 热力学与动力学课程节选