The utility model provides an automatic air interchanger for trains, which can suck air and can supply air, can prevent rain and dust, and has no rotors.
本实用新型提供了一种既可抽气又可送风，既防雨防尘、又无转动件的列车自动换气器。
The utility model provides an automatic air interchanger for trains, which can suck air and can supply air, can prevent rain and dust, and has no rotors.
本实用新型提供了一种既可抽气又可送风，既防雨防尘、又无转动件的列车自动换气器。
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