"We made some goofs that were kind of interesting,". "We didn't make the hallway wide enough to get a piano down, we forgot to put AC outlets in one of the studios, and we completely forgot the echo chambers, so we had to put them under the parking lot.

VOA: standard.2009.08.14

But if there's no heat flowing between these two, ac and no heat flowing between these two then you can't haveheat flowingbetween these two.

那么，这两者,也不会有热量流动。

麻省理工公开课 - 热力学与动力学课程节选