| 单词 | 曲率 |
| 释义 | 〔spherometer〕An instrument for measuring the curvature of a surface, as of a sphere or cylinder.球面曲率计：一种测量球体或圆柱体表面曲率的仪器〔curvature〕The ratio of the change in the angle of a tangent that moves over a given arc to the length of the arc.曲率：切线通过给定弧线的角度变化与弧线长度之间的比率〔curvature〕The reciprocal of the radius of a circle.曲率：一个圆半径的倒数〔curvature〕The limit of this ratio as the length of the arc approaches zero.曲率极限：当弧长趋向于零时该曲率的极限 |
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