以下为句子列表：
英文: The municipality has an advanced modern communications system, with an optic-fiber transmission network of 3,000 kilometers of large capacity and high efficiency, a long-distance automatic exchange capacity of 20,000 terminals, electric lines of 30,000 an
中文: 现代通信发达，构建了大容量、高效率、长达3000多公里的光纤传输网，长途自动交换机容量达2万路端，电路3万多条，基本建立了多媒体、高宽带的通信网络。
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