preventiveadj.预防的;防病的n.预防物;预防性措施
preventive service缉私队,缉私工作
preventive seeping防渗
preventive meaures[法] 预防措施
preventive defence预防
preventive farming保护性耕作
Preventive nursing预见性护理
preventive control预防控制
Preventive testing预防性试验
preventive vaccine预防用疫苗
preventive measure预防措施