COpref.共同；一起；联合abbr.公司（=company）abbr.郡；县（=county）abbr.指挥官（=Commanding Officer）coffien.系成一串的人(或牲口)；连锁着被驱赶的一队奴隶

1. The authors' experiments have confirmed the optimal sedimental agent and the corresponding optimal process conditions.
   在实验中确定了最佳混凝剂和最佳工艺条件。
2. Inorganic compound coagulating agent,represented by polysilicate aluminate,is the water treatment agent that is developing very fast recently.
   无机复合类混凝剂是近来年发展十分迅速的水处理剂，聚硅酸铝盐类是其中的代表。