1.
adjust with a plumb line so as to make vertical.
用铅垂线调整使得垂直。
2.
test(sth)by using a plumb-line
用铅垂线测（某物）.
3.
conforming to the direction of a plumb line.
和铅垂线的方向一样。
4.
The plumB line is always perpendicular to the horizontal plane.
铅垂线总是垂直于水平面的。
5.
A device, such as a plumb line, used in marking the vertical from a given point.
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
6.
a flat surface at right angles to a plumb line.
一个与铅垂线绝对成直角的平面。
7.
Bricklayers and carpenters often use plumb lines.
瓦工和木工经常使用铅垂线。
8.
Absolute Orientation of Aerial Imagery over Urban Areas Combined with Vertical Lines
铅垂线辅助城区航空影像的绝对定向
9.
Design of Horizontal and Vertical Supporting Stiffness for Inertia Reciprocating Machines
惯性往复振动机械水平和铅垂支承刚度设计
10.
Over the centuries it has begun leaning, until it is now many degrees off the perpendicular.
几个世纪以来，它一直在倾斜，现在已偏离铅垂线许多度了。
11.
At the bore, water level rises rapidly, accordingly, vertical component of velocity must be considered.
涌潮潮头处,水位骤涨,相应地,流速的铅垂分量必有一定大小。
12.
3-D Analytic Computational Method of Pollutant Mixing Zone for Reservoir with Vertical Bank
水库铅垂岸地形污染混合区的三维解析计算方法
13.
a straight body with a sharp point at the top.
垂直的楼身加一个尖尖的顶（“铅笔型”）
14.
A small, knoblike pendent object, such as a plumb bob.
悬垂物小的球状悬挂物，如铅锤
15.
galena [lead sulphide]
方铅矿〔铅硫化物〕
16.
between perpendiculars
垂线间垂线间垂线间的
17.
Something vertical, as a line, plane, or circle.
垂直物垂直的东西，比如垂直线，垂直面或垂直圆
18.
There are some pencils in the pencil - box.
铅笔盒里有一些铅笔。