So, when we think about a bond length, this is going to be the length of our bond here, that makes sense because it's going to want to be at that distance that minimizes the energy.

因此，当我们考虑一个键的长度的时候，这就应该是我们的键长，这是合理的,因为体系会在核间距达到这一距离时,能量到达最小值。

麻省理工公开课 - 化学原理课程节选

And we can also talk about the bond length, so we might be interested in what the bond length is, what the distance between these two nuclei are.

另外一点就是键长，我们对键的长度也感兴趣，也就是两个原子核之间的距离。

麻省理工公开课 - 化学原理课程节选

What we're going to do in forming a molecule is just bring these two orbitals close together such that now we have their nucleus, the two nuclei, at a distance apart that's equal to the bond length.

我们在形成一个分子时要做的就是,把这两个轨道放到一起,这样我们有他们的原子核，两个原子核，它们之间的距离为键长。

麻省理工公开课 - 化学原理课程节选

So if we look at its length, it's actually shorter than a single bond, but longer than a double bond.

因此如果我们看它的键长的话，它实际上比单键更短，却比双键更长。

麻省理工公开课 - 化学原理课程节选