英语单词分类 轻松记单词

plumb line

plumb line基本解释

铅垂线;测铅线

plumb line同义词

plumb line相关例句

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。

plumb line英英释义

Noun:
  • 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