随着我国市场经济的发展,需要传输的信息急剧增加,对信息共享,信息传输质量要求也越来越高。但是,当前我国通信线路比较紧张,许多行业的发展受限于通信资源的缺乏。解决通信难的问题需要大量和长期投资,而对信息 With the development of the market economy in our country, the information to be transmitted has dramatically increased, and the requirements on the quality of information sharing and information transmission are also getting higher and higher. However, at present, the communication lines in our country are relatively tense, and the development of many industries is limited by the lack of communication resources. Solving the difficult issues of communication requires massive and long-term investment, rather than information