This article discusses some problems of wired television network in the transmission of digital TV, probes into some technical aspects in the construction and maintenance of HFC network.

讨论有线电视网络中传输数字电视存在的问题，并对HFC网络建设和维护等技术问题进行探讨。

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Currently, the main business includes: sales agents at home and abroad for well-known brands, providing computer and network products technical advice, repair and maintenance services.

目前，主要业务包括：代理销售国内外多个知名品牌产品、提供计算机及其网络方面的产品技术咨询、维修维护服务。

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This paper discusses on the basic models, principles, systematical structure, targets and technical maintenance of network interconnection from the Angle of technology.

从技术角度论述了管理信息系统联网的基本模式、原则、体系结构、目标及技术维护。

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