contact clay treating

例句：

1. 1. The process of contact clay treating involves applying a chemical solution to the surface of the clay to activate itfor further processing.
   接触粘土处理过程涉及将化学溶液施加到粘土表面以激活其用于进一步加工。
2. 2.During this stage, the treated clay is then mixed with water and molded into desired shapes.
   在这一阶段，处理过的粘土随后与水混合并模制成所需的形状。
3. 3.This method is particularly useful for removing impurities from clays that have been subjected to heavy metal contamination.
   这种方法特别适用于从重金属污染的粘土中去除杂质。