This paper introduces the concept and character of access networks, proposes route construction and reliability algorithm used in the design, and compares the new method with the conventional method.

介绍了接入网的概念及特点，阐述了高可靠性光纤接入网设计中应用的路由构造算法和可靠性算法，比较了与传统方法的异同。

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The main concept of this design is that in the most case of narrowband network the IP pronunciation technology is reasonably used to transmit voice, character, blank and video.

该系统设计的主要思想是在目前网络带宽大多是窄带的情况下，合理运用IP语音技术来传输语音、文字、白板以及视频。

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The basic frame of this thesis is as follows: the first chapter states the concept and character in the modern picture book design.

此论文的基本框架如下：第一章：阐述现代绘本书籍设计的概念和特点。

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