OK, delta H is delta of u plus pV. By definition that's how we define enthalpy up here.

好，ΔH=Δ,根据定义，这就是我们。

麻省理工公开课 - 热力学与动力学课程节选

And the last thing we can think about is how do we name this n h bond, and again, we just name it based on it symmetry.

最后我们要讨论的是,如何命名这个NH键，同样，我们基于它的对称性命名它。

麻省理工公开课 - 化学原理课程节选