filtration aid造句

例句与造句

1. In paper making , chitosan can be used as fortifier , sizing agent , retention and filtration aid , surface modifier and flocculation agent for paper - making effluent
   在造纸方面，壳聚糖可用做纸张增强剂、施胶剂、助留助滤剂、表面改性剂和造纸废液的絮凝剂。
2. It's difficult to find filtration aid in a sentence. 用filtration aid造句挺难的