Ran Chengqi - Beidou GPS navigation and positioning expert
Ran Chengqi: China Beidou - serving the world and benefiting mankind
-
- 更新日期: 2021-12-24
- 浏览次数: 1673
Beidou satellite navigation system is a global satellite navigation system independently built and operated by China focusing on the needs of national security and economic and social development. It is an important national space-time infrastructure that provides all-weather, all-time and high-precision positioning, n……
查看更多 >