directrixes
常见例句
- Based on the geometry characteristics of Bertrand surfaces, the complicated surface conjugation issue can be discussed with their directrix line.
基于白川德曲面的几何特征,将复杂的曲面共轭问题归结到准线上来讨论。 - The surface generated by a straight line,the generator,passing through a fixed point,the vertex,and moving along a fixed curve,the directrix.
锥面由一条直线,即母线,通过一固定点,即顶点,沿一给定曲线,即准线,连续移动而产生的平面。 返回 directrixes