preventiveadj.预防的;防病的n.预防物;预防性措施
preventive injection预防注射
preventive potential防护潜力
preventive detection预防性检测
Preventive analgesia预防性镇痛
preventive substance[医] 介体
preventives for fire火灾预防
preventive fungicide预防杀真菌剂
preventive treatment预防法
preventive patrolman护林员
preventive dentistry预防牙科学