When something hot, it's got a higher temperature than when something is cold.

当某样东西是热的时，它的温度,比冷的东西要高。

麻省理工公开课 - 热力学与动力学课程节选

Now if you're at the temperature which is b higher than the inversion temperature, in that case here, a over RT is small compared to b, and this is going to turn out to be negative.

T>Tinv】,这时a/bR小于,结果是负数，因此如果温度。

麻省理工公开课 - 热力学与动力学课程节选