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