confocal quadrics

family of confocal centred conics

共焦有心二次曲线族

conjugate lines in a conic

二次曲线的共轭直线

conjugate diameters of a conic

二次曲线的共轭直径

conjugate lines in a quadric

二次曲面的共轭直线

bifocal chord of a quadric

二次曲面的两焦点弦

Curvature monotony condition Tor the quadratic rational B spline curves.

二次有理B样条曲线曲率单调条件

An efficient extending algorithm for quadric rational Bézier curve

一种二次有理Bézier曲线延拓的有效算法

The Existence of Plane of a Circular Section of the Second Order Surface;

与二次曲面有交线圆的平面的存在性

conjugate diametral plane

共轭径面 -二次曲面的

conjugate diametral planes of a quadric

二次曲面的共轭径面

conic self-programming controller

二次曲线自编程控器

diauxic growth curve

二次[两期]生长曲线

tangent-cone of a qualric

二次曲面的切线锥面

On Some Fixed Value Theorems of Directed Distance for Conic Sections

二次曲线外切多角形中有向距离的定值定理

Region Control of a Rational Quadratic Interpolating Curve Based on Function Values

基于函数值的有理二次插值曲线的区域控制

the curve structure and projective structure of the normal quadric surface;

常态二次曲面的曲线结构和射影结构

Determination of critical edge pressure and plastic zone for subsoil considering quadratic curve as mohr envelop

二次曲线作为Mohr包线时的地基塑性区

Optimum Design of the Cam Curve of Two-variable-unit Zoom System Based on ZEMAX

基于ZEMAX二组运动变焦系统凸轮曲线优化