wash-primer process

例句：

1. 1.The process of washing and drying fabrics is crucial for maintaining their quality.
   清洗和干燥织物的过程对于保持其质量至关重要。
2. 2.During the pretreatment stage, the material undergoes a series of chemical treatments to improve its properties.
   在预处理阶段，材料经历一系列化学处理以改善其性能。
3. 3.The effectiveness of the pretreatment process depends on the choice of chemicals and conditions used.
   预处理过程的有效性取决于所选化学品和使用的条件。