directrix

英汉释义

• n.

  1.【数】准线

  2.〈古〉同“directress”

英英释义

• n.

  1.<archaic>Same as directress

英汉例句

• 1.A fixed point whose relationship with a directrix determines a conic section.

  焦点一个与准线的关系决定圆锥形状的定点

• 2.The directrix line of a conic.

  二次曲线的准线。

• 3.Select the directrix of the new conic. . .

  选择新二次曲线的准线…

• 4.New Latin parametrum [a line through the focus and parallel to the directrix of a conic]

  现代拉丁语parametrum[通过焦点并与圆锥曲线的准轴线平行的直线]

• 5.Developable Surfaces Generated by a Directrix

  导线生成的可展曲面

• 6.Constructing Directrix for Conic Curve

  圆锥曲线准线的几何作图