三维欧氏空间中的球面曲线_stmopen 关键词】: 球面曲线 曲率 挠率 球面Frenet公式 [gap=907]Keywords】: spherical curvecurvaturetorsionsperical Frenet formula
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然后，系统地阐明了点、各种球面曲线以及球面的园弧投影方法和性质。
It also expounds such ar projective methods and properties for points various spherical curves and sphere systematically.
对一个非球面反射镜进行了实测并对测量结果进行插值运算，进而拟合出零件面形的曲线方程。
An aspherical reflector is tested and testing data are processed by the interpolation calculation, then the curve equation of the component surface shape is fitted.
本文给出了关于全挠率的一个著名定理：“球面闭曲线的全挠率为零”一个新的简单证法，并且给出了这个定理的两个推广定理。
A new and simple proving method on the famous theorem of total torsion, "the total torsion of closed spherical curve is zero", and two generalized theorems for the. theorem are presented in the paper.
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