operas戏曲
operan.歌剧n.挪威Opera软件公司的浏览器软件
operating crew工作班
operating book[经] 营业帐簿
operating star操作星轮
operating line操作管路,工作线
operating path工作路径
operating grip操作手柄
operating year实施年度
operating unit操卓件,操作单位,经营机构
operating list作业路线单
operating apro手术围裙