operato手术者, 操作人员
operan.歌剧n.挪威Opera软件公司的浏览器软件
opera highlight折子戏
operating shaft作用轴
operating range运行范围
operating class操作类别
operating chair手术椅
operating spring操作簧
operating skills操作技能
operating device操纵装置
operating systcm操作系统
operating scalpe手术刀