So, we take our two equilibrium states, and you just put an equal sign between them, and the equal sign means go from one to the other.

我们写出两个平衡态，然后你只需要在它们之间放一个等号，等号表示,从一个过渡到另一个。

麻省理工公开课 - 热力学与动力学课程节选

And I'll just put a minus indicating I'm done.

我会放一个-在这里,表示我没有物品可选了。

麻省理工公开课 - 计算机科学及编程导论课程节选

But since in drawing Lewis structures actually, in some cases you do, you can draw a dotted line that means a 1 and 1/2 bond, but most in most cases, we just draw out both resonance structures, and the way that we say it's a resonance structure is that we put it in the brackets and we put an arrow between it.

但是由于在画路易斯结构时,其实，在某些情况下是可以的，你可以画一条虚线来表示一又二分之一键，但是在多数情况下，我们就把两个结构都画出来，而我们说这是一个共振结构的表示的方法是,把它们放在括号里，并在中间放一个双箭头。

麻省理工公开课 - 化学原理课程节选