operation fee运行费用operationn.操作；运转；经营；行动；手术；运算；生效；（复）运筹学operation cost in postal enterprise邮政企业作业成本operation of a transportation agent货物商的经营活动operation performance loss analysis能损分析operation for intracranial aneurysm颅内动脉瘤手术operation and maintenance processor运行和维护处理机Operation on musculoskeletal system肌骨骼系统手术operation and maintenance subsystem操作和维护子系统Operation of Glass Painting Machine喷漆机操作Operation patient with choose stage择期手术患者Operation and Maintenance Center LT操作维护中心