As the reason of design and building and management, this paper introduces reason of slide of geotechnical channel at the operation and suggests the treatment methods.

阐述了岩土渠道由于设计、施工和管理等方面的原因，在运行过程中出现滑坡的原因和处理的方式。

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Moreover, the wireless network is not able to detect collision and monitor the channel status as is the wireline network, which makes it more difficult to design the management scheme.

而且，无线网络不具备有线网络上天然的冲突检测和信道侦听能力，这使得协议设计更具有难度。

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This paper discusses the general structure, hardware and software design, channel management and some other important issues involved in implementing a LAN-PRISDN gateway.

本文以笔者在国外的研究工作为基础，全面系统地介绍该种网关的总体结构，硬、软件设计以及通道管理等实现中所应解决的主要技术问题。

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