科研之友
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<正>A LM-3 B carrier rocket lifted off from the Xichang Satellite Launch Center at 2:09 Beijing time on June 25, successfully putting the Bei Dou 3 IGSO-2 satellite into orbit. IGSO-2 satellite, the 21 st Bei Dou 3 satellite as well as the 46 th Bei Dou Navigation Satellite System(BDS) satellite,
