预处理剂 meaning in Chinese
pretreating agent
Examples
- 3 when petroleum dry cleans , in order to rinse time the pretreatment has used dry cleans in the detergent , the pretreatment medicinal preparation floats the dirt , should clean the machine
3石油干洗时，为漂洗出预处理时使用过的干洗洗涤剂预处理剂中浮出的污渍，须要轻轻机。此时，洗净液的洗涤剂浓度要淡