Team A is made of carboxyl styrene, crylic acid assemble matter; Team B is made of silicate cement, quality quarts grit and special active chemical matter.

  • 组分是由羧基苯乙烯、丙烯酸共聚物等组成;B组份是由硅酸盐水泥、精选的石英砂及特种活性化学物质等组成。
目录 查词历史