詞語：directrix
directrix的解釋
directrix[di'rektriks, dai-]n. [計]準線
directrix的意思
directrix 準線;準線（數學）;scroll directrix 渦卷準線;directrix curve 准曲線;rectilinear directrix 直準線;curvilinear directrix 曲準線;
directrix的參考例句
1.The coastline is the base directrix divides the region of sea and land management. 海岸線是劃分海洋與陸地管理區域的基準線。
2.Based on the geometry characteristics of Bertrand surfaces, the complicated surface conjugation issue can be discussed with their directrix line. 在此基礎上給出了準線應滿足的基本條件、共軛曲面的誘導曲率、不干涉條件與準線曲率軸之間的關係等。
3.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，即母線，通過一固定點，即頂點，沿一給定曲線，即準線，連續移動而產生的平面好評（0。