The lights sparkled from crystal chandeliers.

VOA: special.2009.04.11

The question is can I show you, from an energetic standpoint, that the crystal is favored over having the discrete set of pairs?

我展示你的问题是，从能量的观点出发，晶体倾向于,形成分散的一系列的对？

麻省理工公开课 - 固态化学导论课程节选

And at first this was done by Davidson and Germer, and they were American scientists who tried diffracting electrons from a nickel crystal.

这个实验首先是由，美国科学家Davidson和Germer完成的,他们尝试从镍晶体中衍射电子。

麻省理工公开课 - 化学原理课程节选