特殊用法can opener1.开罐头刀[器]cotton opener1.梳棉机deck sash opener1.通风窗拉杆double cylinder opener1.双锡林开棉机electric door opener1.电开门器fanlight opener1.楣窗开关flask opener1.开瓶器hopper opener1.棉箱开棉机horizontal opener1.卧式开棉机jute opener1.黄麻开包机key type opener1.钥匙开罐器multi-cylinder opener1.多剌辊开棉机photoelectric door opener1.光电开门器spring-leaf opener1.开簧器topping opener1.顶盖开罐刀universal case opener1.通用开表壳器ventilator opener1.通风窗拉杆watch caseopener1.(手)表壳开启器wool opener1.开毛机