它标志着北斗区域卫星导航定位的基本系统建设完成。
It marks the establishment of a basic system for the navigation and positioning network.
北斗双星定位系统(简称双星定位)是我国自行建立的一种定位系统。
Beidou double-star positioning system is built up by our country.
北斗双星定位系统(简称双星定位)是我国自行建立的一种定位系统。
Beidou double-star positioning system is built up by our country.
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