1.
level luffing crane

平行运送旋臂起重机
2.
(h) rigging and use of ship's derricks;

(h)船舶旋臂起重机的装配和使用;
3.
Optimal structural design of a portable column jib crane based on ANSYS;

基于ANSYS的定柱式旋臂起重机机械结构的优化设计
4.
slewing crane

回转[旋臂]式起重机
5.
gantry crane with slewing man-trolley

带司机小车的旋臂龙门起重机
6.
Overbrace jib crane with adjustable hoist. Swing range can be shown.

带有可调节提升机的上支撑动臂起重机。可显示旋转范围。
7.
jib adjusting gear

起重机悬臂升降机构
8.
crane ,jib (excl. portal and pedestal cranes), self-propelled

自动悬臂起重机(门式臂架起重机及支座式悬臂起重机除外)
9.
crane ,jib (excl. portal and pedestal cranes), not self-propelled

非自动悬臂起重机(门式臂起重机及支座式悬臂起重机除外)
10.
Underbrace jib crane with adjustable hoist. Swing range can be shown.

带有可调节绞车的下支撑悬臂起重机。可显示旋转范围。
11.
Shipbuilding-jib cranes

GB/T12932-1991船用臂架起重机
12.
crane with derricking jib

装有人字铁臂的起重机
13.
gantry crane with retractable boom

可伸缩悬臂门式起重机
14.
travelling portal jib crane

门式移动悬臂起重机
15.
mobile revolving boom crane

自行式伸臂回转起重机
16.
The arm of carne slewed round.

起重机臂转了过来。
17.
light mast crane

轻型桅杆式转臂起重机
18.
portable telescopic crane

轻便伸缩臂式起重机