青云翻译

Through the medium weight force and the valve flap, prompting self-closing valve, in order to achieve sealing between the opening and closing

Forcing through medium weight and disc, disc automatically closes to achieve the seal between the opening and closing

Through the medium action and the valve petal dead weight, urges the valve petal automatic shut-off, achieved seals the vice-between the opening and the closure

Through media and self-respect, the valve flap flap valves shut down automatically, in order to reach the sealing Deputy between opening and closing

Forcing through medium weight and disc, disc automatically closes to achieve the seal between the opening and closing