irrigation and drainage equipment
preferred label: تجهیزات آبیاری و زهکشی @fa
type: Concept
narrower: drainage equipment

ditch cleaners
preferred label: ماشین نهرتمیزکن @fa
type: Concept
broader: drainage equipment

earth moving equipment
preferred label: تجهیزات خاک‌برداری @fa
type: Concept
related: drainage equipment

dredgers
preferred label: لای‌روب @fa
type: Concept
broader: drainage equipment

drainage equipment
type: Concept
narrower: dredgers
narrower: drain layers
narrower: ditch cleaners
preferred label: تجهیزات زهکشی @fa
related: drainage
related: earth moving equipment
related: pumps
broader: irrigation and drainage equipment

drain layers
preferred label: لایه زهکشی @fa
type: Concept
broader: drainage equipment

drainage
preferred label: زهکشی @fa
type: Concept
related: drainage equipment

pumps
preferred label: تلمبه @fa
type: Concept
related: drainage equipment