九线二次曲线  nine-line conic

绝对二次曲线(曲面)  breccia marble

射影二次曲面  projective quadric

十一线二次曲线  eleven line conic

测地二次曲线  geodesic conic

常态二次曲线  proper conic

超密切二次曲线  superosculating conic

从配极二次曲线  apolar conics

点素二次曲线  point conic

二次Bezier曲线  quadratic Bezier curve

二次Bzier曲线  quadratic Bzier curve

二次C-曲线  quadric C curve

二次x射线  secondary x rays

二次X射线曝光  double X-ray exposures

二次曲线  conic; Quadratic curve; conic curve; quadratic curves; quafric curve; secondary curve; second degree curve; Conics; Quadric curve; conic section; quadratic equation; conic sections; quadric curves; conical section; conies; the second-order curve; curve of second degree; curve of second order

二次曲线(面)  ACRS

二次曲线逼近法  Secon d curve near way; Second curve near way

二次曲线单元图形  conic primitive

二次曲线的  biconic