| 释义 |
二次曲面1. conicoid2. quadric二次曲面èrcìqūmiànquadric surface (geometry)二次曲面【数】quadratic surface二次曲面n.conicoid【数】二次曲面quadric二次曲面；二次曲线；二次式；二次函数二次曲面1. [Mathematics] a quadratic surface二次曲面quadratic surface ; quadric surface二次曲面surface of second order二次曲面quadratic surface二次曲面surface, quadric二次曲面surface， quadric二次曲面quadric surface二次曲面conicoid双向☞二次--二次曲面二次曲面[数]quadratic surface |