plumb line

听听怎么读
英 [plʌm lain]
美 [plʌm laɪn]
是什么意思
  • n.

    铅垂线;

  • 变形

    复数:plumb lines

    英英释义

    plumb line

    • 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

    学习怎么用

    双语例句

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

    权威例句

    Plumb-line.
    Plumb Line
    Plumbline
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    On the Attraction of the Himalaya Mountains and of the elevated Regions beyond them, upon the Plumb-line in India
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