plumb line

英 [ˈplʌm laɪn]

美 [ˈplʌm laɪn]

n.  (测水深或垂直面用的)重锤线，铅垂线

牛津词典

noun

• （测水深或垂直面用的）重锤线，铅垂线
  a piece of thick string with a weight attached to one end, used to find the depth of water or to test whether a wall, etc. is straight

柯林斯词典

• （检查垂直度的）铅垂线
  Aplumb lineis a piece of string with a weight attached to the end that is used to check that something such as a wall is vertical or that it slopes at the correct angle.

英英释义

noun

• a cord from which a metal weight is suspended pointing directly to the earth's center of gravity
  Synonym:perpendicular

双语例句

• This article gives an easy way in which laser plumb line is set up by means of He-Ne laser in space with the liquid level as the base.
  本文叙述以液面为基准面，用小型氦-氖激光器在空间建立激光垂直线的简易方法。
• Except at the pole and the equator, a plumb line does not point toward the earth's center.
  除在地球的两极和赤道之外，铅锤线并不指向地球中心。
• Study on Influence of Plumb Line Deflection on Transverse Break-through Survey of Tunnels
  垂线偏差对隧道横向贯通测量影响的研究
• Software of plumb line monitoring system and its application
  垂线测量数据管理软件的研制及应用
• Reconstruction and analysis of automatic plumb line monitoring system of Dongjiang dam
  东江拱坝垂线自动监测系统改造实践及成果分析
• The installation of boosters is made by means of lofting plumb line to ensure the mounting precision and symmetry, resulting in accurate force transmition direction, and avoiding the emergence of additional moments.
  本文采用放样吊线法安装助推器，确保安装精度和左右对称，从而保证了力的精确传递方向，避免了附加力矩的产生。
• Plumb line deflection varied with time obtained by repeated gravimetry
  重复重力测量结果计算垂线偏差的时间变化
• The plumb line is always perpendicular to the horizontal plane.
  铅垂线总是垂直于水平面的。
• Electrotype alloys a plumb line attached to a narrow board.
  电铸板用铅基压铸合金一种绑在一条窄木板上的铅锤线。
• Vertical diagonal time section a flat surface at right angles to a plumb line.
  对角线垂直时间剖面一个与铅垂线绝对成直角的平面。