The plumB line is always perpendicular to the horizontal plane.
铅垂线总是垂直于水平面的。
Additional tools which will be required are metre stick plumb line and compass.
其他必须的工具包括米尺，铅垂和罗盘。
Hull floors being fitted and checked for alignment with a centreline plumb line.
赫尔楼正在安装和检查调整，以中心线铅垂线。
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。
For me these meditations are like a plumb line dropped by a master builder - to see if the walls are straight or crooked.
对我来说这些冥想就像一条建筑工人吊的铅垂线—来检查墙壁是否垂直。
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。
If the sculptor then drops a 21 plumb line from the throat to the foot, gravity will then be satisfied and the statue balanced.
如果雕刻家由雕像的喉咙向脚垂测，便看到因符合重力原理，雕像是平衡的。
when a carpenter is satisfied that the walls are straight and aligned with the standard of the plumb line, he says that they are “true.”
当墙与铅垂线标准相一致时，木匠才满意，他说这才是对的。
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。
Total lumbar lordosis, thoracic kyphosis, sacral slope, and C7 plumb line were measured on the pre - and postoperative whole spine lateral views.
在术前、后全脊柱侧位片测量腰椎总前凸、胸椎总后凸、骶骨倾斜度和颈7铅垂线。
Postoperative changes in thoracic kyphosis, sacral slope, and C7 plumb line according to the surgical lumbar lordosis restoration were measured and evaluated.
测量并评估腰椎前凸手术恢复后的胸后凸、骶骨倾斜度和颈7铅垂线的改变。
I spent all day at the construction site, from sunrise to sunset, using my 2 level to make sure the walls were even and my 3 plumb line to check that they were standing straight.
摩顿森说，“我整天待在工地，从早忙到晚，用水平线确定墙砌得够平，用铅垂线量它们够不够直。”
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。
This paper describes the technical improvement of the safety monitoring system at the Chencun Dam. the techniques, technology, and equipment used and in the construction of the plumb line hole.
阐述了陈村大坝安全监测系统的技术改造，以及垂线孔施工采用的主要技术装备及工艺。
Each morning she would arrange her tools carefully, her chisel, her hammer, her mallet, her tape measure, her plumb line, and then she would look over the stones that she had to work with that day.
每天早晨，她会仔细地摆放她的工具，凿子、锤子、木槌、卷尺、铅垂线，然后察看这一天需要雕琢的石头。
The paper outlines the cause of anomalous local plumb-line variations before earthquakes; the establishment of monitoring networks; the progress and prospect of research.
本文概述了地方铅垂线变化震前异常的原因、监测网的建立、研究进展以及展望。
This paper introduces the main restoring treatment plan, technical request and construction process after the plumb-line of dam safety monitoring system was broken in Feilaixia Hydro Project.
文中介绍了飞来峡大坝安全监测系统倒垂线断裂后主要的修复处理方案、技术要求和施工过程，为水利工程中类似问题提供参考。
This paper introduces the main restoring treatment plan, technical request and construction process after the plumb-line of dam safety monitoring system was broken in Feilaixia Hydro Project.
文中介绍了飞来峡大坝安全监测系统倒垂线断裂后主要的修复处理方案、技术要求和施工过程，为水利工程中类似问题提供参考。
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