Create Ruled Surface 创建规则表面 ; 创建规则曲面

conjugate ruled surface [数] 共轭直纹曲面

algebraic ruled surface [数] 代数直纹曲面

double ruled surface 双直纹面

double ruled warped surface 双直线翘曲面

skew ruled surface 不可展直纹面

singly ruled surface 单直纹面

doubly ruled surface [数] 双直纹面

generator of a ruled surface 直纹面的母线

double ruled warp surface 双直纹翘曲面