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日本采用了一种新的施工方法,不需要特殊的操作设备就可修补地下水管漏水,并收到可靠效果。具体做法是在清扫现场时,把麻棉纤维之类的柔性材料
Japan has adopted a new construction method that can repair groundwater pipe leaks without special operating equipment and receive reliable results. The specific approach is to put flexible materials like linen fiber when cleaning the site