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 on prostate前列腺手术
operation constraints运行约束条件
operation of the ship营运船舶
Operation on adenoids腺样体手术
operation programming作业计划
Operation and Support作战和支援
operation interacting营运联动
operation order sheet操作票
operation environment操追境
operation period cost运营期成本