operation net操作网operationn.操作；运转；经营；行动；手术；运算；生效；（复）运筹学Operation environment simulation作战环境仿真operation research and synthesis[经] 经营业务的综合研究Operation and dispatching system运营调度系统Operation Plan in Concept Format作战计划格式operation and maintenance charge运行维护管理费Operation for sex transformation性转变手术Operation and Supervisory System运营监控系统Operation rule of inverse system逆系统运算法则Operation on upper urinary tract上尿路手术Operation of nitrogen fertilizer氮肥运筹