مانع زیرسطحی
type: Concept
broader: مانع
preferred label: subsurface barriers @en

مانع مومسان
type: Concept
broader: مانع
preferred label: plastic barriers @en

مانع
type: Concept
broader: هدف تاسیسات و سازه‌ها
narrower: مانع زیرسطحی
narrower: مانع مومسان
preferred label: barriers @en
related: مقاومت شارشی
related: مهره پلی‌استیرن
related: غربال
related: انسداد
related: حفاظت آب

هدف تاسیسات و سازه‌ها
type: Concept
narrower: مانع
preferred label: facilities and structures by purpose @en

غربال
type: Concept
preferred label: screens @en
related: مانع

مهره پلی‌استیرن
type: Concept
preferred label: polystyrene beads @en
related: مانع

حفاظت آب
type: Concept
preferred label: water conservation @en
related: مانع

انسداد
type: Concept
preferred label: blockage @en
related: مانع

مقاومت شارشی
type: Concept
preferred label: flow resistance @en
related: مانع