And the regressive orbit satellitr's trait is that the satellite can cover the earth periodic,it benefits the dynamic reconnaissance.
而回归轨道的特点是周期性地覆盖地球，这有利于对地球上动态目标的侦察。
参考来源 - 太阳同步回归轨道的设计、仿真研究·2,447,543篇论文数据，部分数据来源于NoteExpress
And the regressive orbit satellitr's trait is that the satellite can cover the earth periodic, it benefits the dynamic reconnaissance.
而回归轨道的特点是周期性地覆盖地球，这有利于对地球上动态目标的侦察。
The key points of the design under the restrained conditions, such as orbit node period, regressive cycles, regressive period, repeat period and others, were also presented.
并给出了在轨道交点周期、回归圈数、回归周期、重复周期和其他因素等约束条件下的轨道设计要点。
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