| 释义 |
垂线 chuí xiàn
基本例句
perpendicularverticalrpendicularvertical plumbvertical lineperpendiculadroop lineperpendicular line繁体垂線顶垂线，高线从一个几何形体的底边到相对的顶点、平行边或平行面的垂直距离The perpendicular distance from the base of a geometric figure to the opposite vertex, parallel side, or parallel surface. |