preventiveadj.预防的；防病的n.预防物；预防性措施preventive inoculation预防接种preventive replacement预防性更换preventive moxibustion逆灸preventive measures.预防措施preventive psychedelic预防精神病学preventive confinement预防性拘禁preventive ma ntenance维修周期preventive measurement防治措施preventive maintenance预防性维修,定期检修preventive termiticide白蚁预防药剂