When discharging, the motor operates, hydraulic cylinder charges pressure, push rod (piston rod) draw back, the valve plate connected with push rod opens, the materials are discharged.是什么意思_When discharging, the motor operates, hydraulic cylinder charges pressure, push rod (piston rod) draw back, the valve plate connected with push rod opens, the materials are discharged.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句