double drum hoist

双筒卷扬机 : double drum hoist; double drum winch; ..

 twin drum winch

... trawl winch with purse drum 鼓轮式拖围绞车 twin drum winch 双筒卷扬机 two drum winch 双滚筒绞车 ...

 double drum winch

... starboard pursing drum 右括纲卷筒 double drum winch 双滚筒绞车; 双筒绞车; 双筒卷扬机 double-drum diesel winch 双筒工柴油卷扬机 ...