preventiveadj.预防的;防病的n.预防物;预防性措施
preventive exercise预防性操练, 保健操
preventive function预防功能
preventive overhaul定期修理,预防性修理
preventive activity预防活动
Preventive incision预防性切开术
preventive solution预防溶液
preventive strategy预防策略
preventive eugenics预防性优生学
preventive behavior预防行为
preventive medicine预防医学