drainage material meaning in English
排水材料
排水物料；疏水物料
疏水物料
Examples
- Subsurface drainage materials
地下排水材料 - A kind of drainage material consisting of a white polypropylene channel - shaped core surrounded by a gray long - fiber hot - bonded non - woven filter fabric , with metal conductor inside for measuring the driven depth
灰色长纤维热粘无纺布滤膜包裹（通过粘合）白色聚丙烯槽型芯板组成的排水材料，内装配金属电子导线用于测量打设深度。