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人类历史首次！中国人让月球背面有了信号（最简解读看完秒懂）
source link: https://news.cnblogs.com/n/597218/
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5月21日5时28分，我国在西昌卫星发射中心用长征四号丙运载火箭，成功将探月工程嫦娥四号任务“鹊桥”号中继星发射升空。这是世界首颗运行于地月拉格朗日L2点（简称地月L2点）的通信卫星，将为2018年底择机实施的嫦娥四号月球背面软着陆探测任...
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