... down-web profile纵向纤网剖面 向纤网剖面 drainage composite system排水复合系统 drain sponge引流纱布 ...
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composite drainage system 复式排水系统
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The stabilization pond-plant bed composite system was used for treatment of farmland irrigation and drainage water, in the plant bed, Zizania caduciflora and Phragites austrails were planted.
采用稳定塘-植物床系统处理农田排灌水，植物床栽植茭草和芦苇。
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