| 释义 |
conic section conic section n.(名词)1. The intersection of a right circular cone and a plane, which generates one of a group of plane curves, including the circle, ellipse, hyperbola, and parabola.圆锥曲线:一正圆锥与一平面相切产生的一组平面曲线,包括圆、椭圆、抛物线和双曲线2. A graph of the general quadratic equation in two variables.二次曲线:由两个变量的二次方程所决定的图形 |