中新网国际新闻: 2040年前建成“月球城市”？航天专家：异想天开

中新网国际新闻

2040年前建成"月球城市"？航天专家：异想天开 Oct 18th 2018, 03:45 　　2040年前建成"月球城市" 航天专家：异想天开

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