preservative agent

• 保存剂,防腐剂

preservative agent的用法和样例：

例句

1. Salt is a preservative for meat.
   盐是肉类的防腐剂。
2. Ca-propionate was used as antiseptic agent to restrain growth of bacteria and mold.
   并通过添加丙酸钙作为防腐剂有效抑制了细菌和霉菌的生长。