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国际习用原点
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国际习用原点
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conventional international origin;CIO
国际习用原点
为了统一全球地面坐标系统和便于研究极移,1967年国际天文学联合会(IAU)、国际大地测量和地球物理联合会(IUGG)决定采用统一的地极坐标原点,称为国际习用原点。
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