1.
stiffleg derrick
固定支架桅杆式起重机
2.
light mast crane
轻型桅杆式转臂起重机
3.
new mechanical bumper jack
新式机力保险杆起重器
4.
derrick ,ship's (excl. floating), not self-propelled
非自动船用桅杆起重机（浮式起重机除外）
5.
crane ,derrick (excl. floating cranes, crane lorries and railway rolling-stock), self-propelled
自动桅杆起重机（浮式起重机、起重运货汽车及铁路流动托架除外）
6.
crane ,derrick (excl. floating cranes, crane lorries and railway rolling-stock), not self-propelled
非自动桅杆起重机（浮式起重机、起重运货汽车及铁路滚动托架除外）
7.
Researching for Steel Structure Calculation System of Four-bar-type Gantry Crane
四连杆式门座起重机钢结构计算系统研究
8.
Lifting appliances--Vocabulary--Derrick cranes
GB/T6974.11-1986起重机械名词术语桅杆起重机
9.
HOW TO PULL THE HOIST ROPE OF GUY TYPE DERRICK CRANE MODERATELY AND IN AN INCLINED ANGLE WITH A DRAG ROPE
有牵引绳的缆绳式桅杆起重机起升绳适度斜拉的探析
10.
The ginpole is the simplest form of derrick.
起重吊杆是一种最简单的起重机。
11.
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。
12.
A jack operated by a screw.
螺旋起重机，螺旋千斤顶由螺旋杆运作的起重机
13.
A usually portable device for raising heavy objects by means of force applied with a lever, screw, or hydraulic press.
千斤顶，起重机通过杠杆、螺丝钉或水的压力把重物提起的便携式装置
14.
gin pole type concrete spouting plant
起重桅杆式混凝土灌注设备
15.
magnetic traveling crane
电磁吸盘式门式起重机
16.
cab-operated overhead crane
司机室操纵桥式起重机
17.
luffing winch motor
俯仰式起重机电动机
18.
The flagpole toppled over and a crane had to be used to erect it.
旗杆倒下了，必须用起重机将它扶直。