| 释义 |
垂线垂线[chuí xiàn]1.■（与另一条直线或平面相垂直的直线） perpendicular; vertical; {数} vertical line; perpendicular line
常用词组1.■垂线变化 variation of vertical;2.■垂线尺 plumb rule;3.■垂线法 normal line method;4.■垂线偏差 deviation of plumb line;5.■垂线曲率 curvature of the plumb line;6.■垂线铊 plummet;7.■垂线足 point of intersection of a vertical line and a horizontal line or a plane;8.■垂线坐标仪 plumb line coordinator |