Diatomic mean it's di atomic, it's made up of two atoms, and homonuclear means that those two are the same atoms.

双原子意味着它是两个原子，它由两个原子组成，同核意味着这两个原子时相同的原子。

麻省理工公开课 - 化学原理课程节选

So where we had left off with was we'd fully discussed up to the point of considering homonuclear diatomic molecules, so molecules that both have the same nucleus.

我们上次,讲到了我们,已经讨论过同核双原子分子，也就是有相同原子和的分子。

麻省理工公开课 - 化学原理课程节选

This is the homonuclear bond energy for hydrogen in pure hydrogen. There we have perfect covalency.

这是氢的同原子的共价能,在纯氢中，我们有完美的共价键。

麻省理工公开课 - 固态化学导论课程节选

Then we're going to actually use MO theory to describe bonding within these molecules, and we'll start with homonuclear diatomic molecules.

然后我们要利用MO理论,来描述这些分子内的成键，我们要讨论同核双原子分子。

麻省理工公开课 - 化学原理课程节选

If it is homonuclear they are all the same.

同核就是都是一样的原子。

麻省理工公开课 - 固态化学导论课程节选

It's kind of ironic that we put this in the same lecture as we talk about atomic radii, which we also call r, but they're two different r's, so you need to keep them separated in terms of what you're talking about.

有点讽刺的是,我们在同一堂课里还讨论过了原子半径，它也是用，r，表示的，但是它们具有不同的意义，因此大家需要注意区分它们,弄清楚我们讨论的是哪一个。

麻省理工公开课 - 化学原理课程节选