- 斗架
- ladder: n. 1.梯子。 2.梯状物；〔比喻〕(进身的)阶梯，成 ...
- 挖泥船: dredge; hydraulic dredge
- 等: class; grade; rank
- 挖泥船: bagger; drag boat; drdeger;dredge; dredge boat; dredge ship; dredge, dredger; dredging craft; dredging machine; excavator; floating dredger; hog barge; hydraulic dredge; marine dredge; mud drag; mud dredger; snagboat; ym dredge; ymn dredge
- 挖泥船挖泥机: dredger; excavator
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