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telecommunicatio通讯communication电信网 | 邮电通讯系统 2022-08-10 63 0star收藏 版权: . 保留作者信息 . 禁止商业使用 . 禁止修改作品
80年代以来,光纤通讯在电信网中获得了大规模使用。其使用场合已逐步从远程通讯、市话局间中继通讯转向接入网。光纤通讯的便宜、优异的带宽特性正使之变成电信网的首要传输手法

(Since the 1980s, optical fiber communication has been widely used in telecommunication networks. Its use occasion has gradually shifted from telecommunication and inter-office relay communication to access network. The cheap and excellent bandwidth characteristics of optical fiber communication are making it the primary transmission method for telecommunication networks)

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