preservativen.防腐剂;预防法;预防药adj.保存的;有保存力的;防腐的
preservative substance防腐剂,杀菌剂
preservative injection防腐注射
preservative-treated防腐处理
preservative mechanism防腐机制
preservative efficiency防腐效率
preservative mechanisim应用
preservative engine oil防护机器油
preservative measurement防腐措施
preservative combination防腐合剂
preservative and sweetener防腐剂和甜味剂