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self-closing fire door是什么意思
中文翻译自关式防火门
网络释义
1)self-closing fire door,自关式防火门2)fire proofing door automatic close,防火门自动关闭3)automatic closing fire door,自动关闭防火门4)fire door self-closing type,自闭式防火门5)heat-actuated fire door,自动防火门6)fire resisting self-closing door,防火自掩门