单词conic section
na.: 圆锥截面；圆锥[二次]曲线
网络: 圆锥曲线；二次曲线；锥部
二次曲线；圆锥曲线:
a shape formed when a flat surface meets a cone with a round base
圆锥截面;圆锥[二次]曲线
〔数〕圆锥曲线
A fixed point whose relationship with a directrix determines a conic section.
焦点一个与准线的关系决定圆锥形状的定点
a fixed reference point on the concave side of a conic section.
圆锥截面凹面的固定参考点。
Finally, using conic section to approximate the chin outline and remove the neck area.
最后，确定人脸边缘，完成人脸区域精确定位及面部各特征的提取。
Aesthetic quality education in teaching of "conic section"
“圆锥曲线”教学中审美素质教育
According to the fUndamental theorem of coniC In projective geometry any five points can decide one conic section.
在射影几何中，二次曲线定理告诉我们任意五点可以决定一条二次曲线。
On the Point of Intersection of Conic Section in Parameter Form
参数形式的圆锥曲线交点问题
Another Nature of Conic Section
圆锥曲线的又一性质
The Demonstration of the Conic Section Is an Envelope of Family of Straight Lines
圆锥曲线是直线族的包络的证明
The Relation Between the Eccentricity of Conic Section and the Parameter
圆锥曲线离心率与参变量的关系
The Research Of The Curve Formed By The Conic Section Rolled On Line
圆锥曲线沿直线滚动所形成曲线的研究