单词查询
directrix
美[dɪ'rektrɪks]，英[dɪ'rektrɪks]，
释义
「
」
n. 【数】准线；〈古〉同“directress”； 网络释义： 抛物线的准线；导面；
例句
A fixed point whose relationship with a directrix determines a conic section.
The directrix line of a conic.
Select the directrix of the new conic. . .
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]
The directrix line of a conic.
Select the directrix of the new conic. . .
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]