修路是個技術活，冬夏溫差可以到100°，熱脹冷縮。還有就是冰漲，水滲入到縫隙，結冰後膨脹，路麵就爛了。

來源: 8gu 於 2025-05-10 20:29:28 [舊帖] [給我悄悄話] 本文已被閱讀：次

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