am、is、are、was和were是be的限定形式；being和been是非限定形式。

'Am', 'is', 'are', 'was' and 'were' are the finite forms of 'be'; 'being' and 'been' are the non-finite forms.

《牛津词典》

这位律师成了“不要”综合征的受害者，这是一种消极的目标设定形式。

This lawyer had fallen victim to the "don'ts" syndrome—a form of negative goal setting.

youdao

这位律师成了“不要”综合征的受害者，这是一种消极的目标设定形式。

This lawyer had fallen victim to the "don'ts" syndrome, a form of negative goal setting.

youdao

The electronic configuration, all it is is the shorthand notation for that one electron approximation for the Schrodinger equation for lithium.

电子构型就是，对于锂的薛定谔方程,的单电子近似的,简化形式。

麻省理工公开课 - 化学原理课程节选

And when you solved the relativistic form of the Schrodinger equation, what you end up with is that you can have two possible values for the magnetic spin quantum number.

当你们解相对论形式的,薛定谔方程，你们最后会得到两个,可能的自旋磁量子数的值。

麻省理工公开课 - 化学原理课程节选

So here I've written for the hydrogen atom that deceptively simple form of the Schrodinger equation, where we don't actually write out the Hamiltonian operator, but you remember that's a series of second derivatives, so we have a differential equation that were actually dealing with.

这里我写出了,氢原子薛定谔方程的,最简单形式，这里我们实际上,没有写出哈密顿算符,但是请记住那你有，一系列的二次导数,所有我们实际上会处理一个微分方程。

麻省理工公开课 - 化学原理课程节选