名词
中文翻译：圆心半径
同义词：
['radius of curvature', 'radius of curvature at the meridian']
例句：
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1. The radius of curvature at the meridian is a crucial factor in determining the shape of the earth's surface.
子午线上的曲率半径是决定地球表面形状的关键因素。
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2. The radius of curvature at the meridian affects the accuracy of satellite navigation systems.
子午线上的曲率半径影响卫星导航系统的准确性。
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3. The radius of curvature at the meridian can be used to calculate the distance between two points on the surface of the earth.
子午线上的曲率半径可以用来计算地球表面上两点之间的距离。