And we do so by a quantity called the average valence electron energy.

我们可以通过,一个叫做平均价电子能的量来解决这一问题。

麻省理工公开课 - 固态化学导论课程节选

And when we're talking about the amplitude of the wave, we're talking about the deviation from that average level. So, if we define the average level as zero, you can have either a positive amplitude or a negative amplitude.

当我们讨论一个波的振幅时,我们说的是偏离平均位置的量,如果我们把平均位置,定义为零的话，那幅值不是,正的就是负的，有时候人们在。

麻省理工公开课 - 化学原理课程节选

I rather suspect that people who have less than the average of something, it hurts them more than it benefits the people who have more than the average of something.

我怀疑那些,在某些东西上得到少于平均量的人，比在某些东西上得到多于平均量的人,感受到的痛苦更大。

耶鲁公开课 - 死亡课程节选