But it's not quite true, because typically what they actually do that, is they say it's adjusted for risk.

但是这是不对的，因为它们实际上就是存在这种情况，它们会根据风险进行调整。

麻省理工公开课 - 计算机科学及编程导论课程节选

And some of them might be spinning clockwise, in which case, according to the right-hand rule we would consider them spin-down.

而另一些电子则是在顺时针自旋，在这种情况下，根据右手定理,我们会以为它是在向下转。

麻省理工公开课 - 固态化学导论课程节选