Study on the Key Techniques of Luffing Jib Cranes;
动臂起重机若干关键技术研究
light mast crane
轻型桅杆式转臂起重机
underhung slewing jib crane
悬挂式回转臂起重机
stiffleg derrick traveler
刚性腿移动式转臂起重机
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。
jib adjusting gear
起重机悬臂升降机构
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）
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
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
portable telescopic crane
轻便伸缩臂式起重机
level luffing crane
平行运送旋臂起重机
mobile crane with articulated jib
铰接臂流动式起重机
luffing jib tower crane
动臂变幅塔式起重机
