短语词组短語sluse conchoid 斯呂塞蚌線conchoid bodies 甲狀小躰hyperbolic conchoid [數]雙曲蚌線;雙曲螺線conchoid d 蚌線elliptic conchoid [數]橢圓蚌線circular conchoid 圓蚌線parabolic conchoid [數]拋物蚌線 返回 conchoid