The multi-inhibited system composed of alum and hydrotropic cationic polymer was employed to hinder the migration of the latex binder.

 
  • 探討了明礬與帶正電荷的水溶性聚合物復配體系對阻礙增強樹(shù)脂熱遷移的作用。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan