在我国的邮政史上,都市的邮政网路一直沿用一个中心制的体制。而在朝着现代化飞速发展的今天,这种体制的缺陷越来越明显了。它已成了扩展邮件吞吐处理能力的重大障碍。在人类社会发展史上,不论是政治、还是经济、科学技术等体制,都在适应社会发展的需要而不断地革新。仅以城市市内电话网中单局制已彻底被多局制取代为例,就足以证明了。这是都市电话事业发展的必然结果。客观 In the history of postal service in our country, the postal network in the city has always followed a centralized system. However, with the rapid development of modernization, the defects of such a system have become more and more obvious. It has become a major hurdle to expanding mail throughput capabilities. In the history of the development of human society, no matter whether it is political or economic, scientific and technological systems, we are constantly innovating in response to the needs of social development. The mere fact that the single-seat system in the urban telephone network has been completely replaced by the multi-part system is sufficient evidence. This is the inevitable result of the development of urban telephone. objective