outrigger

jib adjusting gear

起重机悬臂升降机构

gantry crane with retractable boom

可伸缩悬臂门式起重机

travelling portal jib crane

门式移动悬臂起重机

underhung slewing jib crane

悬挂式回转臂起重机

cantilever walking crane

壁装移动式悬臂起重机

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）

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）

Determination method of attachment spacing and cantilever height in tower crane

塔式起重机附着间距及悬臂高度的确定

Operation Safety Monitoring of Tower Crane Used in Cantilever of CCTV Main Building

CCTV主楼悬臂部位塔式起重机运行安全监测

Installation of Tower Crane Used in Cantilever of CCTV Main Building

CCTV主楼悬臂部位大型塔式起重机安装技术

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。

Shipbuilding-jib cranes

GB/T12932-1991船用臂架起重机

crane with derricking jib

装有人字铁臂的起重机

mobile revolving boom crane

自行式伸臂回转起重机

The arm of carne slewed round.

起重机臂转了过来。

light mast crane

轻型桅杆式转臂起重机

portable telescopic crane

轻便伸缩臂式起重机

level luffing crane

平行运送旋臂起重机