1.
The ginpole is the simplest form of derrick.
起重吊杆是一种最简单的起重机。
2.
a simple crane having lifting tackle slung from a boom.
在吊杆上有起重滑车的简单起重机。
3.
Stand clear of the swinging boom of the crane.
不要走近转动的超重机吊杆。
4.
A hinged pair of curved iron bars for raising heavy objects, such as stones or timber.
起重吊钩一种带有铰链的弯铁杆，用来吊起石块或木材等重物
5.
One crane dipped into No.2 hold and came up with a " Shanghai" sedan.
一架起重机的吊杆伸入二号舱，吊出一辆上海牌轿车。
6.
A long pole extending upward at an angle from the mast of a derrick to support or guide objects lifted or suspended.
吊杆从起重机的竖樯上以一定角度向上伸出的长杆，用来支持或牵引物体竖立或吊起
7.
Installation and mounting: Ceiling installation or supended to ceiling with chain or line.
安装方式：吊装式或吸顶式，吊杆，吊链。
8.
lifts and moves heavy objects; lifting tackle is suspended from a pivoted boom that rotates around a vertical axis.
提起并移动重物；起重滑车悬挂在围绕垂直轴旋转的转动吊杆上面。
9.
The beam then retums to its original position under its own weight and operates the underground water pump.
在自身的重量作用下，吊杆再回到原处，并带动地下水泵。
10.
Study of Internal Force Redistribution of Damaged Hanger System of Concrete-Filled Steel Tube Tied Arch Bridge
钢管混凝土系杆拱桥损伤吊索系统内力重分布研究
11.
boom test certificate
吊货杆试验合格证书
12.
air lift rod transfer elevator
气动抽油杆运移吊卡
13.
midship-log boom
船体中部测程仪吊杆
14.
derricking gear
吊货杆跨度变换装置
15.
full rotating derrick
全旋转吊杆起货设备
16.
32-metre 4-arm placing boom
32米4臂浇灌吊杆
17.
truck mounted placing boom
装在汽车的灌筑吊杆
18.
Trial-design research on inclined hangers in CFST bowstring arch bridge
钢管混凝土系杆拱斜吊杆试设计研究