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地心坐标系
space geocentric coordinate system; geocentric system of coordinate
地心坐标系以地球质心为原点建立的空间直角坐标系，或以球心与地球质心重合的地球椭球面为基准面所建立的大地坐标系
expl. geocentric coordinate system
地心坐标系: 10 phrases in 2 subjects
Space8
Technology2

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