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星岛加拿大都市网
8 天
春季反复冻结和融化导致安省路面坑洞增多
在气温回暖时,水分可能渗入路面的裂缝中。随后当水结冰时体积膨胀,对路面形成向上的压力。而当车辆碾过这些区域时,重量会导致路面破裂,沥青被挤出,形成坑洞。
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