He came up with the relationship that nu bar, which is called wave number --He found the reciprocal.

他也提出了它们与波数的关系，波数是波长的倒数。

麻省理工公开课 - 固态化学导论课程节选

- There are a few equations that you need to memorize -- those are the very simple -- very, very simple equations, such as e equals h times nu -- hopefully you don't have to sit down and try to memorize that, hopefully we all know that already.

只有几个公式是需要记住的-,它们都非常简单，非常非常简单，比如，E，等于，h，乘以，ν,希望大家不需要再专门去背了，希望我们已经都记住了。

麻省理工公开课 - 化学原理课程节选

This is h nu. X-rays coming in.

这是hv，X光出现了。

麻省理工公开课 - 固态化学导论课程节选

So, we can just plug it in. Speed is equal to the distance traveled, which is lambda over the time elapsed, which is 1 over nu. so, we can re-write that as speed is equal to lambda nu times nu, and it turns out typically this is reported in meters per second or nanometers per second.

经过的距离和所花的时间,我们把它们带进来,速度等于经过的距离,也即是lambda除以,所花的时间,通常它的单位,是米每秒或者纳米每秒。

麻省理工公开课 - 化学原理课程节选