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لغة المحتوى

1 نتائج 'land drainage'

Land drainage (en) → Drainage engineering (en)
Hydraulic engineering
Drainage, Land reclamation, Sanitation, Sewers
Land drainage
Politics, law and economics > Civil, military and mining engineering
Ingeniería de drenaje (es), Drenaje de tierras (es), Дренажные сооружения (ru), Дренаж земель (ru), هندسة صرف الفضلات (ar), هندسة الصرف (ar), صرف الاراضي (ar), Technologie du drainage (fr), Drainage des terres (fr)
http://vocabularies.unesco.org/thesaurus/concept8390