Typical urban public utilities provide mix goods from productive spots to specific consumers through pipeline network transmission system.
典型的城市公用事业通过管道网络传输系统，从生产地向特定的消费点提供混合商品。
Typical urban public utilities provide mix goods from productive spots to specific consumers through pipeline network transmission system.
典型的城市公用事业通过管道网络传输系统，从生产地向特定的消费点提供混合商品。
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