The end would be a sight to see.

VOA: special.2010.02.27

Because already I can see there is a line of sight from one nucleus to the other with no electron density whatsoever.

因为我已经看出在Z轴,有一条线从这个核到那个核,没有连续电子。

麻省理工公开课 - 固态化学导论课程节选