Operation era经营时代
operationn.操作;运转;经营;行动;手术;运算;生效;(复)运筹学
operation supervision业务监督
operation cost method作业成本法
operation of business经营企业
operation regulations操作规程
operation irregularity工作事故
operation at part load部分负荷运行
Operation Orientations办学定位
operation power charge运行电费
operation of hip joint髋关节手术
operation of liability负债融资