Ключевые слова:
Water pollution|Canals|Quality|Water retention and flow works|Waterproof materials|Land drainage works|Reservoirs|Installation|Agricultural equipment|Wells|Pipes|Water supply engineering|Safety measures|Irrigation works|Drainage|Dams|Maintenance|Water storage|Irrigation equipment|Water supply|Water|Dykes|Embankments|Tanks (containers)|Surface water|Ground water|Rivers|Design|Watering equipment|Legislation|Waterways|Springs (water)|Water resources