例句與造句

1. The study of modified phenol - formaldehyde resin as a retention aid
   改性酚醛樹(shù)脂用于助留的研究
2. Study on application of modified phenol - formaldehyde resin in retention aid system
   有機(jī)硅改性酚醛樹(shù)脂助留助濾試驗(yàn)的研究
3. The study of polyethylene oxide modified phenol - formaldehyde resin dual retention aids system
   改性酚醛樹(shù)脂在造紙助留體系的應(yīng)用研究
4. It's difficult to find modified phenol-formaldehyde resin in a sentence. 用modified phenol-formaldehyde resin造句挺難的