链斗挖泥船 meaning in Chinese

bucket dredger

Sand pump bucket dredger
自扬链斗挖泥船
Repairing technical requirement for special equipment of bucket dredgers part 1 : shofts on the ladder
链斗挖泥船专用设备修理技术要求第1部分：斗桥传动轴
Repairing technical requirement for special equipment of bucket dredgers part 3 : buckets and accessories
链斗挖泥船专用设备修理技术要求第3部分：泥斗及其传动设备
Repairing technical requirement for special equipment of bucket dredgers part 2 : guide wheel of bucket chain bridge
链斗挖泥船专用设备修理技术要求第2部分：斗桥导轮