flocculating colloid

例句：

1. 1. Flocculating colloids are important in the formation of foams.
   絮凝胶体在泡沫的形成中起着重要作用。
2. 2. The researchers found that the flocculating colloids could be used to remove pollutants from water.
   研究人员发现，絮凝胶体可以用来从水中去除污染物。
3. 3. The flocculating colloids were mixed with the solution and allowed to settle for several hours.
   将絮凝胶体与溶液混合并让其沉降数小时。