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城市地下管线是城市重要的基础设施,是现代化城市高效率、高质量运转的保证,它担负着输送能量、传递信息的重要任务,被称为城市的“生命线”。城市地下管线
Urban underground pipeline is an important infrastructure in the city. It is the guarantee of efficient and high-quality operation in a modern city. It plays an important role in transporting energy and transmitting information. It is called the “lifeline” of the city. City underground pipeline