热胀冷缩。
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我家阳台的金属框架楼梯, 现在半空旋着呢, 夏天安的, 到冬天就着不了地。
-yellowlemon-
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12/16/2016 postreply
18:29:15
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所以懒汉一般都选木料做室外结构。但也没关系,乘这两天冷着,拆了重装。
-多哥-
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12/16/2016 postreply
18:37:56
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也不用, 夏天才走那楼梯呢, 拆那是不可能的, 连在房子上头呢。
-yellowlemon-
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12/16/2016 postreply
18:53:13
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