10. The boundary layer frontalsecondary circulation equation, which is based on the approximation of the Ekman momentum, is usedto make diagnose the synoptical process.

• 但是居中的几个则好象被人忘却了似的，而他们却往往成为最好的子嗣。父母在对儿子应给的银钱上吝啬，是一种有害的错误；这使得他们卑贱；收藏指正