But we've defined the enthalpy of those elements in their stable state at room temperature and pressure as zero, right?

但我们已经定义了这些,元素处于它们室温和常压下,最稳定的状态时的焓为零，对吧？

麻省理工公开课 - 热力学与动力学课程节选

This is only defined in terms of state functions.

但是他们只是态函数。

麻省理工公开课 - 热力学与动力学课程节选