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卯酉圈曲率半径
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卯酉圈曲率半径
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radius of curvature in prime vertical
卯酉圈曲率半径
与过某点子午面正交的法截面在椭球面上的截线,叫作卯酉圈。其上各点的曲率半径即为卯酉圈曲率半径。
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