floc-forming chemical reagent

例句：

1. 1. The flocculent substance helps to remove impurities from water.
   这种絮凝物质有助于从水中去除杂质。
2. 2. The flocculating agent is essential for the treatment of wastewater.
   这种凝聚剂对于废水的处理至关重要。
3. 3. The flocculent particles are easily separated from the liquid by centrifugation.
   这些絮凝颗粒通过离心很容易与液体分离。