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

• A device, such as a plumb line, used in marking the vertical from a given point. Riser cables-Sectional specification
  垂规，铅垂线一种装置，如铅垂线，用于从给定点标记竖直方向垂直布线电缆分规范
• Adjust with a plumb line so as to make vertical. Then the wire between two posts gets lower in the middle.
  用铅垂线调整使得垂直。这样，在两根电线杆中间的电线就略为下垂一些。
• The plumb line is always perpendicular to the horizontal plane.
  铅垂线总是垂直于水平面的。
• 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
• 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
• The optical astronomical instruments for time-latitude measurements have advantages of good long-term stability, being able to monitor changes of the local plumb line and to make absolute determinations.
  光学天文时纬仪器具有长期稳定性好，可监测地方铅垂线变化与测定的绝对性等优点。
• Think of this as being a plumb line to find* used to find the direction of gravity.
  假设这是铅垂。，想想重力方向是怎样的。
• 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
• Development tendency of automatic monitoring system of plumb line and extension line
  矫顽力自动测量装置垂线、引张线自动监测系统的发展趋势
• 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。