现代通信是现代社会中必不可少的基础结构,是国民经济的“神经系统”。它通过提供优质、高效、低消耗的通信效能,把社会生产、分配、交换和消费这四个环节有机地联系起来,加速信息传递,对社会产生巨大的经济效益。轮船、火车、飞机的运行离不开通信的指挥调度,水文、气象、地震、电力等部门离不开通信联络,发射人造地球卫星和宇宙飞船更离不开通信技术。国民经 Modern communication is an indispensable basic structure in modern society and a “nervous system” of the national economy. By organically linking these four aspects of social production, distribution, exchange and consumption, it provides a high-quality, efficient and low-consumption communication efficiency, accelerating the transmission of information and generating enormous economic benefits to society. The operation of ships, trains and airplanes can not be separated from the command and dispatch of communications. Hydrology, meteorology, earthquakes, electricity and other departments can not be separated from the communication links. The launch of man-made earth satellites and spacecraft can not be separated from communication technology. National economy