英语语法分析

Sometimes it's also called the internuclear axis.

有时候它也叫核间轴。

A triple bond, again is going to have one sigma bond on the internuclear axis.

一个三键，同样的也有沿着核间轴sigma键。

Any time two orbitals come straight on together in that internuclear axis, you're going to have a sigma bond.

任何时候两个轨道，在核间轴上直接到一起，你就能得到sigma键。