This research is designed for comparing the flocculation and sedimentation of water treatment when backwashing water is recycled and treated together with raw water. 研究了滤池反冲洗水和原水混合一并处理时，反冲洗水的加入对水处理混凝沉淀的影响。
flocculation and sedimentation怎么读 flocculation and sedimentation是什么意思
