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虽然技术难度很可能比殖民火星还高，但是视觉效果是真的炸裂 我看知乎有人提到过一个很有趣的方案，在小行星上原地冶炼，然后电磁轨道射到近地轨道捕获，再带回地球。有些小行星的贵金属含量很高，这比火星的经济价值高很多吧 现在已经迫不及待想看星舰在轨加油了（
