perpendicular
US /ˌpɝː.pənˈdɪk.juː.lɚ/
UK /ˌpɜː.pənˈdɪk.jə.lər/
形容词
垂直的
at an angle of 90° to a given line, plane, or surface
示例:
•
The wall is perpendicular to the floor.
墙壁与地面垂直。
•
Draw a line perpendicular to the base.
画一条与底边垂直的线。
名词
垂线
a line or plane that is at an angle of 90° to another line or plane
示例:
•
The architect ensured that all the perpendiculars were perfectly aligned.
建筑师确保所有垂直线都完美对齐。
•
In geometry, a perpendicular is often used to define height.
在几何学中，垂线常用于定义高度。