preventive use预防性使用preventiveadj.预防的；防病的n.预防物；预防性措施preventive administration预防用药Preventive antibacterials预防用抗菌药物PREVENTIVE EDUCATION UNIT毒品防范教育组preventive health behavior预防性卫生行为Preventive health services预防卫生服务Preventive Aircraft Repair飞机预防性修理Preventive region division防治区划preventive care department防保科preventive countermeasures防治对策preventive health behaviour预防性卫生行为