pencil of conics [数] 二次曲线束
conjugate conics 共轭圆锥曲线 ; [数] 共轭二次曲线
bitangent conics 双切二次曲线 ; 双切锥线
range of conics [数] 二次曲线列 ; 二次曲线系列
similar conics [数] 相似二次曲线
apolar conics [数] 从配极二次曲线
system of conics [数] 二次曲线系
web of conics 二次曲线罗
homothetic conics 位似二次曲线
For this reason, we introduce a practical representation of quadric surfaces, and on the basis of that, algorithms of intersection points between quadric surfaces and several conics, fourth degree nonplanar space curves constructing their boundaries are developed.
为此，对一种实用的二次曲面表示方法——几何法进行了深入研究后，给出了构成二次曲面轮廓的几种二次曲线和空间四次曲线与二次曲面交点的求法。
参考来源 - 曲面实体造型中曲线和曲面交点的求解 in CThe curves in clothing CAD ,which having been analyzed , had“gentle”characters, in other words ,they can described conics、lines in addition to free curves and be stored and processed by computer with facility .
服装CAD曲线具有“柔性”的特点,也就是说既能够表示标准的圆锥曲线、直线,同时也能表示自由曲线,而且必须能够容易被计算机存储和处理。
参考来源 - 面向对象的服装打/推系统的研究与开发·2,447,543篇论文数据，部分数据来源于NoteExpress
同义词： conic section
"conical mountains"
同义词： conical conelike cone-shaped
以上来源于: WordNet
N the branch of geometry concerned with the parabola, ellipse, and hyperbola 圆锥曲线论
And five standard equations of conics are also directly deduced.
并直接推出了二级曲线的五种标准方程。
Conics is a difficult section in the Analytic Geometry for senior high school students.
圆锥曲线是高中生解析几何学习中的一个难点。
High School: Algebra, Geometry, Advanced Algebra, Trigonometry, Pre-Calculus (conics and limits)?
高中：代数，几何，高等代数，三角学，？(圆锥和极限)？
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