气动阀

air-operated amplifier【自】;pneumatic amplifier【自】;pneumistor【自】

air-actuated control system【自】;air-operated control system【自】

air-operated system【机】;pneumatic system【自】

air-operated humidity controller

air-operated positioner【自】

air-operated lubricator

air control【自】;air-operated control【自】;pneumatic control【自】

air-operated detector