That means that this temperature right here is the absolute lowest temperature you can go to that physically makes any sense.

是物理上不可能的状态,也就是说这一点,对应的温度是物理上。

麻省理工公开课 - 热力学与动力学课程节选

The lowest possible temperature in the Celsius scale is minus 273.15 degrees Celsius. So that begs the notion of re-referencing our reference point, of changing our reference points.

在摄氏温标中,绝对零度是-273。15摄氏度5,这样，我们需要重新定义参考点,将零度的参考点取在绝对零度处，而不是0摄氏度处。

麻省理工公开课 - 热力学与动力学课程节选