It released a parachute, used pulsed thrusters to slow to a fast walking speed, and then descended the last few metres to the Martian soil to land on three legs.
英
美
释义
它释放出一个降落伞,用脉冲的矫正舱身用的火箭来减慢快速的行走速度,然后用三条腿在登陆火星的泥土中下降几米。
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