不遜美國，中國太空3d打印技術前景廣闊！在外星蓋房子不是夢！丨東城觀星
Synopsis
中國作為航天大國，新一代載人飛船實現了無人3D打印技術，還跟美國採用了不同的方案，這是一項重要的技術突破，這期視頻就帶 ...
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