残柳不语雁不误，西风转，世已秋。踌躇举杯对孤影，尚未语，泪先留。Want to buy osmanthus with the load of wine, the end is not like, young tour. Invite the east wind moonlight, spring is not allowed, and then turn back. Repeat the old ...

来自北极的涡旋分裂南下有利于冬季风暴的形成。北极上空存在逆时针旋转的涡旋，涡旋内部是超强冷空气，外部是强盛的西风急流，一般情况下西风急流会对冷空气起到束缚作用，而且北极和热带地区温差越大，这种束缚能力就越强。而当北极涡旋产生不稳定 ...