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当前，有线电视用户采用非法手段盗用有线电视信号、拖欠电视收视维护管理费甚至故意破坏有线电视传输网络设施等违章违法行为还比较普遍。
Nowadays, it is common that some CATV users embezzle CATV signal illegally, delay paying for CATV maintenance management, and destroy CATV transmission network infrastructure intentionally.
建立程控交换电话网络实现电话通信需要大量的设备费、线路费、维护费和工程费等费用，并且需要一定的施工工期。
Instructing the switching network to realize the telephone communication needs much of equipment charges, lines charges, protection charges, project charges and time.
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