ratio of non-operating profit to net sales【会计】
【运输】操纵装置（操纵机构）
operating device (operating mechanism)
暂无补充释义。
相关词条
operating post
operating mechanism
non-operating holding company【金融】
multiple processor operating system【计】;multiprocessor operating system【计】
non-operating item
ophthalmic operating instrumentsset
operating supervisor【计】;operation supervisor【计】