双层空心墙
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brick cavity wall 空心砖墙
Based on the leakage problem of exterior wall, the paper presents the principle of "negative pressure and cavity" by analyzing the construction technology of face brick wall.
针对饰面砖外墙渗漏现象，通过对饰面砖施工工艺分析，提出了“空腔负压”原理。
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