diffusion washing

例句：

1. 1. The process of diffusion washing is crucial for removing impurities from the surface of a material.
   扩散洗涤过程对于从材料表面去除杂质至关重要。
2. 2. During the diffusion washing stage, the chemicals are absorbed into the material's pores.
   在扩散洗涤阶段，化学物质被吸收到材料的孔隙中。
3. 3. This method is commonly used in industrial processes to clean and sterilize equipment.
   这种方法常用于工业过程中清洁和消毒设备。