plumb line

noun

1. （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

1. （检查垂直度的）铅垂线
   A plumb line is 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.

1. The smaller the angle of the weak plane, and the larger the water level are, the closer the location of the critical point is to the plumb line through the dam heel, and vice versa.
   反倾结构面的倾角愈小、上下游水位差愈大，剪应力临界点的位置愈靠近坝踵铅垂线；
2. 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。
3. A carpenter's level with a plumb line at right angles to it.
   右边角有铅线的曲尺。
4. The plumb line is always perpendicular to the horizontal plane.
   铅垂线总是垂直于水平面的。
5. 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。
6. The plumB line is always perpendicular to the horizontal plane. Simulation Study and Industrial Practice of Double SENs in Beam Blank Mold
   铅垂线总是垂直于水平面的。异型坯连铸双浸入式水口浇铸技术模拟研究及工业实践
7. The metal bob of a plumb line.
   一种在铅锤线下的金属球。
8. Between perpendiculars adjust with a plumb line so as to make vertical.
   垂线间垂线间垂线间的用铅垂线调整使得垂直。
9. 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
10. 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。
11. 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。
12. 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。
13. 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。
14. Meanwhile, it also discusses the influence of roll yaw on sideslip in spin, and of moving round plumb line on angle of bank.
    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。
15. 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
16. 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。
17. 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。
18. 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。
19. The Calculation of Plumb Line Deflection in Dam Deformation Measurement
    大坝变形观测中垂线变化的计算
20. 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。
21. It also describes the new techniques and the results drilling tracing of deviation correction in the construction of the bottom of the plumb line hole. Finally, several views are out forward.
    介绍了垂线孔孔底随钻跟踪定向纠偏新技术和施工效果，最后结合实例谈几点认识。
22. 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
23. 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
24. 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
25. 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
26. 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。
27. 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。
28. Construction of the Inverted Plumb Line Boring of Shimen Arch Dam Right Abutment
    石门拱坝右坝肩倒锤钻孔施工
29. 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
30. 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

noun

1. a cord from which a metal weight is suspended pointing directly to the earth's center of gravity

   Synonym:    perpendicular