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1·It is always a significant object to study the orographic effect on the planetary atmosphere.

行星大气中地形效应的研究一直是人们十分重视的问题。

2·We primarily discuss orographic effect on the synoptic system, and study the problems of lee cyclogenesis in the baroclinic atmosphere.

本文主要讨论地形对天气系统的影响，研究了斜压大气中地形背风气旋的问题。