在大城市试行平信直封投递局分发方式的探讨刘建军随着现代社会对邮政需求的不断发展，邮政逐步采用了机械化、自动化的处理手段，尤其在“八五”期间大量使用和引进了国内外先进的自动化分拣设备，在信函处理方面到１９９５年底已有３５个城市５７套自动化信函分拣设备投... A Trial Discussion on Distribution Methods of Direct Mail in Direct Mail Distribution in Large Cities Liu Jianjun With the continuous development of postal demand in modern society, Post has gradually adopted mechanized and automated means of handling. In particular, it has extensively used and introduced domestic and foreign Advanced automated sorting equipment, in the letter processing by the end of 1995 has 35 cities 57 sets of automated letter sorting equipment ...