摘要
介绍了高速公路通信业务的种类及特点 。
Have introduced classify and characteristic of the communication service of the expressway, and has analyzed the current situation of communication network and development trend in the future at present.
出处
《黑龙江交通科技》
2002年第8期85-86,89,共3页
Communications Science and Technology Heilongjiang
关键词
高速公路
通信系统
网络
交换机
expressway
communication system
net
switchboard
