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天问一号即将着陆火星，能抗住“魔鬼7分钟”的考验吗？
2021年是火星探测一个非常关键的一年，有三颗火星探测器奔向火星而且有两个火星车它在火星上着陆，那么在火星上着陆会遇到哪些技术问题？
焦维新教授44/654
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