万向机构
omnidirectional mechanism
转向万向节
steering universal joint
Steering shaft universal joint
吹气卷扬机
pneumatic flotation machine
大吨位智能卷扬机
large-tonnage intelligent hoist
单卷扬机运行法
single-hoist operation method
电控卷扬机
electric controlled hoist
防爆电动卷扬机
explosion-proof electric hoist
机动卷扬机
mechanical capstan engine
powered hoist
motor driven winch