At that time, dark sand on the interior of Martian sand dunes became more and more visible as the spring Sun melted the lighter carbon dioxide ice.

  • 火星沙丘内部的暗沙,随着春日的阳光融化较薄的干冰而逐渐清晰可见。

  • 互联网摘选 2025-01-20 13:33:48

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