operaria职虫(膜翅目)
operan.歌剧n.挪威Opera软件公司的浏览器软件
operating system process操作系统进程
operating system viruses操作系统型病毒
operating system testing操作系统测试
operating humidity limit使用湿度极限
operating system nucleus操作系统内核
operating response model操作响应模型
operating system service操作系统服务
operating expense ledger[经] 营业费用类帐