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下水道冻冰了怎样弄开

更新时间: 2020-11-03 00:00:00     

倒一包盐进下水道,再倒入开水即可把下水道的冰化开。下水道是一种城市公共设施,指建筑物排放污水和雨水的管道,也指城市、厂区或村庄排除污水和雨水的地下通道。该设施在古罗马时期就有出现,但近代下水道的雏形却源于法国巴黎。

关键词: 下水道 怎样

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