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只看楼主 我来说两句-
wzp736
沙发
个人觉得是防止梯梁的抗扭不足。汶川地震的经验吧
2011-08-13 13:47:13
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perma
板凳
抗震需求，免得上面没有钢筋，直接就断了
2011-08-13 10:47:13
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