plumb line

plumb line读音音标

英 [plʌm lain]

美 [plʌm laɪn]

plumb line意思解释

n.

铅垂线；

变形

复数：plumb lines

英英释义

n.

a cord from which a metal weight is suspended pointing directly to the earth\'s center of gravity; used to determine the vertical from a given point

同义词：perpendicular

双语例句

用作名词(n.)The plumB line is always perpendicular to the horizontal plane.铅垂线总是垂直于水平面的。