大连石油化工公司专用通信网的组建张展，郭俭源专用通信网是公用网的一个重要组成部分，是公用网一个不可缺少的补充。目前在专用网的用户很多，但大多数专用网只是简单地将总机之间进行连接，而没有更多地考虑网络的利用率、网络运行的可靠性及全网透明度问题。大连石油... Establishment of Dalian Petrochemical Company Private Communication Network Zhang Zhan and Guo Jiangyuan Private communication network is an important part of public network and is an indispensable supplement to public network. At present, there are many users in the private network, but most private networks simply connect the switchboards without considering the utilization of the network, the reliability of the network operation, and the transparency of the entire network. Dalian oil ...