同义词
1)bucket chain dredger,多斗挖掘船2)bucket dredger,多斗挖掘船3)continuous bucket dredge,多斗挖掘船4)ladder dredger,多斗挖掘船5)multibucket,多斗的6)bucket excavator,多斗挖掘机7)multibucket excavator,多斗挖掘机8)multi bucket dredger,多斗采砂船9)multi bucket excavator,多斗挖土机10)continuous bucket elevator,多斗提升机
