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 independent独立运算
Operation Thunder Run奔雷行动
Operation cooperation手术配合
operation on the head头部开刀
operation danger step操作危险点
operation on the spot现地作业
operation of websites网站运营
operation and command作战指挥
operation declaration操作说明
Operationing patients骨折手术患者