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介绍了压力型真空断路阀防虹吸倒流的原理,论述了止回阀和排气阀等部件的结构特点,及关键零件的设计计算方法。
The principle of anti-siphon backflow of pressure-type vacuum circuit-breaker is introduced. The structural characteristics of check-valve and exhaust valve and other components and the design and calculation of key components are discussed.