southwestern humid tropical region of Yunnan Provi
Analytical Center of Southwestern Bureau of Geology CNNC
southwestern railway network
Southwestern Qaidam Basin
Southwestern Petroleum Institute
西南石油学院开发系
西南石油学院
西南石油学院应用化学系
Southwestern Petroleum College
Southwestern Offshore Taiwan
Southwestern Normal University
Southwestern mountainous area
southwestern margin of the Yangtze platform
Southwestern margin of Altay Mountain
Southwestern Low Vortex
southwestern Jianghan Basin
Southwestern jet stream