We can also look at them coming in from the side, and that's what I tried to depict here where you can actually see in pink is the p orbital.

我们也可以看到它们从这个方向来，这就是我这里试图描绘的,你可以看到粉红色的p轨道。

麻省理工公开课 - 化学原理课程节选