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北斗卫星导航系统建设 (oct 31, 2000 – jul 31, 2020)

Description:

首次发射：2000年10月31日
北斗三号系统于2020年7月31日完整开通。

Added to timeline:

3.3.2战后演化

ByFrank Qiao
1 months ago
2
0
4895

Date:

oct 31, 2000
jul 31, 2020
~ 19 years
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