conchoid

基本解释

• n.螺旋线(蚌线；螺线管；贝壳状断面)

同根派生

英汉例句

• hyperbolic conchoid
  双曲蚌线
• circular conchoid
  圆蚌线
• conchoid sfitting
  二次曲面拟合
• elliptic conchoid
  椭圆蚌线
• parabolic conchoid
  抛物蚌线

词组短语

短语

• sluse conchoid 斯吕塞蚌线
• conchoid bodies 甲状小体
• hyperbolic conchoid [数]双曲蚌线;双曲螺线
• conchoid d 蚌线
• elliptic conchoid [数]椭圆蚌线

英英字典

柯林斯英英字典

• a plane curve consisting of two branches situated about a line to which they are asymptotic, so that a line from a fixed point (the pole) intersecting both branches is of constant length between asymptote and either branch. Equation: (x a)(x + y) = bx where a is the distance between the pole and a vertical asymptote and b is the length of the constant segment

专业释义

数学

• 蚌线

生物学

• 蚌线