operaria职虫(膜翅目)
operan.歌剧n.挪威Opera软件公司的浏览器软件
operating modal analysis工作模态分析
operating room assistant手术室助手
operating cycles counter动作计数器
operating administration运营管理部门
operating system program操作系统程序
operating expense budget[经] 营业费用预算
operating system control操作系统控制
operating system routine操作系统例行程序
operating responsibility经营责任
operating physical force操作力