| 单词 | conic section |
| 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 |
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