Officials from Oman,Pakistan, Qatar,Saudi Arabia,Syria,Tunisia, the United Arab Emirates,and Yemen were also on hand to discuss improving human development, democracy,rule of law, and economic growth.

VOA: standard.2009.11.03

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

And, according to the right-hand rule, they would be spinning, by our convention, anticlockwise.

并且由右手定律我们知道，按惯例，它们是在逆时针自旋。

麻省理工公开课 - 固态化学导论课程节选