二次曲面反射镜
mirrors of second order surface
二次Bezier曲面
quadratic Bezier curve surface
二次曲面
quadratic surfaces
Quadric surfaces
quadric surface
quadratic surface
skewed quadric surfaces
QUADRICS
Surface
curved surface of second degree
second camber
square surface
quadaratic surface
Surface of degree 2
quadratic flank face
surface of second order
conicoid
rotational conicoid
Quadric
charge moment ellipsoid
Aircraft domain
center conicoid
二次曲面的二焦点弦
bifocal chord of a quadric
二次曲面的共轭直线
conjugate line in a quadric
二次曲面的极点
pole of a quadric surface
二次曲面的切线锥面
tangent cone of a quadric