So, there's actually another way to graph it where we can directly graph the dissociation energy or the bond strengths.

其实，还有另外一种画这个曲线的方式,可以直接画出离解能的大小,或者键的强度。

麻省理工公开课 - 化学原理课程节选

So let's just prove that to ourselves and figure out the bond order just using valence electrons.

让我们证明一下这一点,来看看只用价电子算出键序。

麻省理工公开课 - 化学原理课程节选

And, I know I need to come up with four symmetric equi-length bonds, and let's just see, let's draw the structure here.

我想我们需要,4个对称的等长的键，让我们画出CH4的结构。

麻省理工公开课 - 固态化学导论课程节选

There are nine keys for my left thumb alone so I'm kind of switching between these on the back here and many others, and because of that I can go very high and I'll just demonstrate that.

我的左手拇指就要控制九个音键,通过按动后部,和其他地方的音键,我就能吹出很高的音,我现在就来演示

耶鲁公开课 - 聆听音乐课程节选

So, this gives you the energy of the bond.

这可以算出键能。

麻省理工公开课 - 固态化学导论课程节选

So, if we think about this z bonding axis between the two carbon atoms, we can picture overlap of those s p hybrid orbitals, and then we can also picture bonding to hydrogen.

如果我们考虑,两个碳原子之间的z成键轴，我们可以画出sp杂化轨道的交叠，我们也可以画出和氢原子的成键。

麻省理工公开课 - 化学原理课程节选