框架式自动空气断路器
frame type automatic air circuit breaker
防爆自动空气开关
anti-explosion automatic air switch
复合自动空气开关
compound automatic air switch
万能自动空气开关
all-purpose automatic air switch
自动气动开关
autopneumatic circuit breaker
板式空气—空气热交换器
plate-type air-air heat exchanger
模制外壳式自动空气断路器
automatic molded case air circuit breaker
自力式自动开关阀
automatic self-generating valve
起动空气自动断流阀
automatic starting air shut-off valve
去话主开关框架
outgoing primary switch frame