随着科学技术水平的提高,进入七十年代后,国外的邮政机械化已从试制样机阶段一跃发展到多机联动进而实现普及推广的阶段。近几年来世界各大城市已陆续建成一批机械化程度较高的邮政业务集中处理局。 With the improvement of science and technology, into the seventies, foreign postal mechanization has leapt from prototype prototype stage to multi-machine linkage and thus achieve the stage of popularization and promotion. In recent years, major cities in the world have successively established a batch of centralized post offices for centralized postal services with a high degree of mechanization.