常见例句雙語例句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、共軛曲麪的誘導曲率、不乾涉條件與準線曲率軸之間的關系等。 返回 conjugation line