- spherical curvature
- 球: sphere; globe
- 曲率: curvature; buckling; curvity
- 地球曲率: curvature of earth; curvature of the earth; earth curvature; earths curvature
- 球曲率中心: center of spherical curvature; centre of spherical curvature
- 地球曲率半径: radius of curvature of the earth
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