["O queário排汽帽是什么",,"O VH排汽帽应用在定排、连排出气口上是什么装置？请告知这个的海友给解答一下，非常感谢！",,"为什么现在回贴这么少了。","O出口为一H型装置结构，利用排空防止雨水倒灌进入系统。"]
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应用在定排、连排出气口上的VH排汽帽是什么装置？请知道这个的海友给解答一下，非常感谢！
为什么现在回贴这么少了。
出口为一H型装置结构，利用排空防止雨水倒灌进入系统。
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