directrix的用法和樣例：
例句
用作名詞 (n.)
- Based on the geometry characteristics of Bertrand surfaces, the complicated surface conjugation issue can be discussed with their directrix line.
基于白川德曲面的幾何特征，將復雜的曲面共軛問(wèn)題歸結到準線(xiàn)上來(lái)討論。 - The surface generated by a straight line,the generator,passing through a fixed point,the vertex,and moving along a fixed curve,the directrix.
錐面由一條直線(xiàn)，即母線(xiàn)，通過(guò)一固定點(diǎn)，即頂點(diǎn)，沿一給定曲線(xiàn)，即準線(xiàn)，連續移動(dòng)而產(chǎn)生的平面。
詞匯搭配
- directrix curve 準曲線(xiàn)
- directrix plane 準平面
