英语释义

• a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point

片语

local plumb-line variation地方铅垂线变化

direction of plumb-line垂线方向

plumb-line observer垂线观测仪

plumb-line e铅垂线

plumb-line sign垂直线征英语

plumb b line铅垂线

plumb-line mean flow velocity垂线平均流速

英汉例句

• 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；

• the plumb line is always perpendicular to the horizontal plane.

  铅垂线总是垂直于水平面的。

• 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。

• 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。

• 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鉆跟蹤定向纠偏新技术和施工效果，最后结合实例谈几点认识。

• 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。

• 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準面，用小型氦-氖激光器在空间建立激光垂直线的简易方法。

• 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。

• the results indicate:rock mass of shaft wall in the upper part of the shaft suffered from the effects of tensile stress in plumb line direction, the properties and amount of stress of rock$…

  观测结果表明：井筒上部围巖体在铅垂方向上受张应力影响，而井筒底部围巖体所受应力的大小和性质与工作面的布置方式、开采顺序以及井筒与工作面的相对位置有关。

• 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。

• 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。