travelling derrik

traveling forge crane

锻造用移动式起重机

magnetic travelling crane

电磁吸盘式移动式起重机

derrick, mobile (i.e.,lorries fitted with a derrick assembly, winches or other appliances for drilling

移动式起重机（即装配有起重机组件、绞盘或其他钻井设施的大卡车）

travelling portal jib crane

门式移动悬臂起重机

gantry crane with movable girder

可移动主梁门式起重机

cantilever walking crane

壁装移动式悬臂起重机

stiffleg derrick traveler

刚性腿移动式转臂起重机

crane ,overhead traveling, on fixed support

固定支座移动式高架起重机

High Altitude Displacement Installation of Whip-typed Tower Crane Used in CCTV Main Building

CCTV主楼大型动臂式塔式起重机高空移位安装

luffing winch motor

俯仰式起重机电动机

power-driven lifting appliance

动力推动式起重机械

crane:To hoist or move with or as if with a crane.

"起吊,吊运:用起重机或用类似起重机提升或移动."

A machine for hoisting or moving heavy objects.

起重机上升或移动重物的机器

electric single-beam bridge crane

电动单梁桥式起重机

hand-operated single-and-double beam bridge crane

手动单双梁桥式起重机

electric overhead travelling grab crane

桥式电动抓斗起重机

non-slewing mobile crane

非回转流动式起重机

mobile crane with articulated jib

铰接臂流动式起重机