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本文通过进行实验室外墙抗渗试验，分析了外墙及外墙材料的雨水渗透特性，为外墙的设计、施工及材料的选择提供了理论依据。
In this paper, the laboratory external wall impermeability test was carried out to analyze the rainwater infiltration characteristics of the exterior wall and exterior wall materials, providing a theoretical basis for the design, construction and material selection of the exterior wall.