underdrain

基本解釋

In addition, its unique water distribution structure and water collector result in even water flow, and that it is provided with high-efficiency underdrain drainage system.
獨特的布水結構與集水器形成均勻的水流，暗渠排水系統(tǒng)效率高。
Dewatering Technology for Underdrain Construction
渾河截流暗渠施工降水技術
Application of Geotextile in Drainage Design of Underdrain
滲溝排水設計中土工織物的使用
Standard Specification for Asbestos-Cement Underdrain Pipe
石棉水泥地下排水管
Consideration to the Calculating Method for Underdrain in Highway Engineering
對現(xiàn)行公路滲溝計算方法若干問題的思考