电力网络是电力系统除去发电机和用户以外的那部分，它包括变电站、输电线路和配电网络。
The electric power network is the part of the electric power system but the generators and the consumers; induding substations, transmission lines, and distribution networks.
在ISDN用户线基本接入全双工传输系统的设计中，线路编码是重要的一步。
Line coding is an important step in the design of full-duplex transmission system to support ISDN subscriber line basic access.
产品类型POTS分离器。系统的应用，非对称数字用户线路。
Product type POTS splitter. System application asymmetric digital subscriber line.
产品类型POTS分离器。系统的应用，非对称数字用户线路。
Product type POTS splitter. System application asymmetric digital subscriber line.
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