The shape and perigee of artificial satellite orbits shall continually variate due to caused by the atmospherical drag and the earth gravity.
人造地球卫星轨道由大气阻力和地球引力场等因素摄,状和近地点位置将不断改。
The shape and perigee of artificial satellite orbits shall continually variate due to caused by the atmospherical drag and the earth gravity.
人造地球卫星轨道由大气阻力和地球引力场等因素摄,状和近地点位置将不断改。
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