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一、有线电视系统有线电视系统在我国大中城市和县乡中心城镇已广泛普及,并且仍然在继续发展,是电视用户获得有线电视信号的主要途径。有线电视的接收方式摆脱了每
First, the cable television system Cable TV system in China’s cities and counties and towns in central towns have been widely popularized, and still continue to develop, is the main way for television users access to cable signals. Cable TV reception methods get rid of every