double-action self-closing door

基本解释双向自动关闭的门

网络释义

1)double-action self-closing door,双向自动关闭的门2)automatic closer,自动关闭门3)fire proofing door automatic close,防火门自动关闭4)automatic closing fire door,自动关闭防火门5)self-closing valve,自动关闭活门6)The doors will shut automatically.,门将自动关闭。

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