conics
n. 锥线论；圆锥曲线论
例句
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)？
