短语词组短语flocculent sludge 絮凝性污泥;絮状污泥flocculent property 絮凝性能flocculent capability 絮凝性能flocculent rate 絮凝率flocculent cell 絮凝细胞cationic flocculent 阳离子絮凝剂flocculent soil 凝土Flocculent gene 絮凝基因flocculent mechanism 絮凝机理 返回 flocculent