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

• Due to machining accuracy and limited leveling precision of gimbals, there is always an inconsistency between the visual axis and the vertical rotational axis of the digital zenith camera and the plumb line, which leads to a big deviation between measurement precision and theoretical precision.
  由于机械加工精度和常平架的调平精度有限，天顶摄影仪的视轴、垂直旋转轴与铅垂线总是存在不一致，导致测量精度与理论精度存在很大的偏差。
• The simulation algorithms of wave high, yaw force, rolling moment and sway moment were put forward. Meanwhile, it also discusses the influence of roll yaw on sideslip in spin, and of moving round plumb line on angle of bank.
  给出了随机海浪波高、横荡力、横摇力矩、艏摇力矩的仿真算法。同时就尾旋中偏滚对尾旋侧滑的影响、绕铅垂轴旋转对坡度的影响等进行了讨论分析。
• The plumb line deviation method of determining heights from GPS in local area
  GPS在小区域内测定点位高程应用中的垂线偏差方法
• 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。
• 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
• The Calculation of Plumb Line Deflection in Dam Deformation Measurement
  大坝变形观测中垂线变化的计算
• 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
• Telemetry system of two-dimensional suspension extension line and three-dimensional inverse plumb line
  悬链式二维引张线及三维倒垂线遥测系统
• Using self-made clamping& locking apparatus and traditional method of plumb line to substitute theodolite and jack can achieve better effect in erecting concrete filled tubular steel column of high-rise building.
  在高层建筑钢管混凝土柱安装工艺中，采用自制卡盘锁具和传统吊线坠方法代替经纬仪和千斤顶，能取得更好的安装效果。
• The plumb line is being used to find the direction of gravity.
  铅垂就是这样确定，重力方向的。