短語(yǔ)詞組短語(yǔ)switching -off 斷開(kāi);開(kāi)閘emergency switching -off 應(yīng)急切斷;事故切斷;緊急切斷Switching -off Pressure 切斷壓力outage switching -off 停電操作switching on off manners 投切方式 返回 switching off