Wednesday 12 December 2018
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chinanews - 23 days ago

中国北斗迈出走向全球关键一步

  两颗组网卫星顺利升空,基本系统星座部署完成――  中国北斗迈出走向全球关键一步

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中国北斗迈出走向全球关键一步

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