最后一步这样实现：用950艘运载火箭运输材料，在地球轨道上建造10艘宇宙飞船，再用2年时间飞往那颗红色行星。
Ten space ships constructed in orbit using 950 ferry flights to supply the building materials would make the 2-year voyage to the Red Planet.
采用本地轨道坐标系对两邻近飞船间相对运动动力学展开研究，指出在相对运动中也存在平衡状态；
The dynamics of the relative motion between two nearby spacecraft is investigated in a local orbital coordinate system. It' has been pointed out that an equilibrium state may exist in the motion;
采用本地轨道坐标系对两邻近飞船间相对运动动力学展开研究，指出在相对运动中也存在平衡状态；
The dynamics of the relative motion between two nearby spacecraft is investigated in a local orbital coordinate system. It' has been pointed out that an equilibrium state may exist in the motion;
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