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中国区域定位系统（Chinese Area Positioning System，CAPS）是基于通信卫星的转发式卫星导航系统，基本原理是导航信号由地面导航站上行，......
Community-Based Approach in the Prevention and Management of Flood Disasters in Babessi Sub-Division
Flood is a recurrent natural disaster that has caused enormous human and material damage in many places and continues to......
