preventive use预防性使用preventiveadj.预防的；防病的n.预防物；预防性措施preventive maintenance strategy预防性养护preventive and curative thought防治意识Preventive Maintenance Division预防保养处Preventive and control strategy防控策略preventive maintenance schedule预防性维修计划preventive measure against rats防鼠措施preventive maintenance contract预防维护合同preventive maintenance overhaul预防性维护大修preventive/mitigation system治理系统preventive sanitary supervision预防性卫生监督