英语词汇“pressure-type vacuum breaker”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pressure-type vacuum breaker
释义	pressure-type vacuum breaker pressure-type vacuum breaker A vacuum breaker containing an independently operating, internally-loaded check valve and an independently operating air inlet valve on the discharge side of the check valve.
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