Well, this is in a stationary orbit so we need to have a standing wave. Not to scale.

在静止的轨道中,我们需要的是驻波，不是要去测量。

麻省理工公开课 - 固态化学导论课程节选

In order to have an electron in a stationary orbit this implies standing wave.

为了在静止的轨道中拥有电子,驻波是不可少的。

麻省理工公开课 - 固态化学导论课程节选