火星質量不足以維持一個大氣壓的空氣。這是難點。
所有跟帖:
• 行話。 早期磁場不穩是前提。 -科普閑談- ♂ (0 bytes) () 10/28/2015 postreply 11:24:15
• 行話。 早期磁場不穩是前提。 -科普閑談- ♂ (0 bytes) () 10/28/2015 postreply 11:24:15
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