Radar expert Liu Yongtan, defense engineer Qian Qihu win China's top science award - CGTN

Radar expert Liu Yongtan, defense engineer Qian Qihu win China's top science award

Tech & Sci

CGTN

1km to Beijing

2019-01-08 10:53 GMT+8

Updated 2019-01-08 14:05 GMT+8

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