operancen.操作(运行；运算；作用；作战)operan.歌剧n.挪威Opera软件公司的浏览器软件operatmg practice操作实践operating storage有效(工作)库容operating clothes手术衣operating results[经] 营业成果operating control操纵装置operating gearing经营杠杆率operating station操纵部位,控制台operating scissor手术剪operating repairs日常维护检修operating feature工作特点