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

• 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。
• 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。
• 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。
• The plumb line is always perpendicular to the horizontal plane.
  铅垂线总是垂直于水平面的。
• 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。
• 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。
• 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；
• 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
• 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
• 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。