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。

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.

youdao

同时，两车的间距不能超过两辆车的长度。

At the same time, the distance between two cars had to not more than two vehicle-lengths apart.

youdao

通过我们的方法，可以精确地控制头发的间距和的头发的长度。

And through our approach we can precisely control the spacing of the hairs [and] the length of the hairs.

youdao