protective colloid
短语词组
- protective e colloid 保护胶体
- theory of protective colloid 保护性胶体学说
- Chelating Agent Protective Colloid 螯合
- protective colloid detail 养护胶体
- protective colloid effect 护胶作用
- protective colloid and bodying agents 胶质液保护剂和基料剂
- colloid protective agent 胶体保护剂 返回 protective colloid