underdrain meaning in English
n.
阴沟，暗渠，地下沟道。
vt.
用暗渠排去(…处)的水。
n.
-age
地下排水。
Examples
- Standard specification for asbestos - cement underdrain pipe
石棉水泥地下排水管的标准规范 - Standard specification for non - asbestos fiber - cement underdrain pipe
非石棉纤维水泥地下排水管的标准规范 - Filter underdrain system
滤池配水系统 - Pvc specification for smooth - wall poly vinyl chloride plastic underdrain systems for highway , airport , and similar drainage
高速公路机场和类似场所排水系统用光滑壁聚氯乙烯 - Pvc standard specification for smooth - wall poly vinyl chloride plastic underdrain systems for highway , airport , and similar drainage
高速路,飞机场及类似区域排水用光壁聚氯乙烯