发布时间:2025-01-25 07:09:40
差不多
暗散水建在地下,上铺回填土素土夯实或种植土,在表面无法看到散水的结构,适合做庭院或绿化。暗散水分两种,混凝土和大理石板。优势在于造价较低,施工较为简单;劣势在于水泥砂浆暴露于地面上,会遭到腐蚀较为严重。
明散水的目的是将雨水排到建筑物的外侧,能够有效地防止雨水入侵建筑物,是在地面上建造的。
为什么玫瑰花插芊每次都发芽了 但没多久就会从花枝的底部枯萎求解答
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