air operated throttle motor的意思|示意

风动节流器 ... closed center valve 中间位置封闭的阀(方向阀); 进风阀 air operated throttle motor 风动节流器,凝结水 air pilot valve 空气导向阀 ...

风动节流阀马达 air operated throttle motor 风动节流器, 风动节流阀马达 air pilot valve 空气导向阀 ..

风动节省器 automatic gas sampling valve 不佣人的劳力气体进样阀 air operated throttle motor 风动节省器, 风动节省阀电动机 air control valve 空调阀 ..