1.
test(sth)by using a plumb-line
用铅垂线测（某物）.
2.
adjust with a plumb line so as to make vertical.
用铅垂线调整使得垂直。
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.
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。
10.
between perpendiculars
垂线间垂线间垂线间的
11.
Lead and lead-antimony alloy wire
GB/T1474-1988铅及铅锑合金线
12.
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
13.
A vertical or nearly vertical line or plane.
垂直线，垂直面垂直或近似垂直的线或平面
14.
"Hook, Line & Sinker"
"汽笛,电线与铅锤"
15.
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”）
16.
A small, knoblike pendent object, such as a plumb bob.
悬垂物小的球状悬挂物，如铅锤
17.
In a vertical or perpendicular line.
垂直地在一条垂直线或竖直线上
18.
To cover, line, weight, or fill with lead.
以铅覆盖用铅覆盖、划线、加重或装满