It might turn out if I had X-ray vision that what I see is this... Then the answer'd be there's not one train here.

有可能是,我看到的是这样。,答案就不是同一辆火车。

耶鲁公开课 - 死亡课程节选

1 Similarly, if m is equal to either plus 1 or minus 1, py we would in turn call it the p y orbital, or the p x orbital.

类似的，如果m等于+1或，我们可以叫它，或者px轨道。

麻省理工公开课 - 化学原理课程节选