求翻译：铁路信息化从20世纪70年代初至今已有三十年左右，信息技术在客货票系统、列车调度、运输管理等窗口部门的应用较为全面和深入，但是在机务、车务、工务、电务、车辆等为数众多的后勤保障单位则往往停留在较为粗浅的应用程度。日前，在铁路维修企业中还没有建成一套适应企业现代化管理的管理信息系统。是什么意思？

Railway information from the early 1970s has been three decades or so, the application of IT in the sector of passenger and freight tickets, train scheduling, transportation management window is more comprehensive and in-depth, but in the maintenance of bus services, public works, electricity depart

Rail information from the 20th century, early 70s has been around for 30 years, information technology, to the passenger and freight trains, and ticket system, transport management, the application window for a more comprehensive and in-depth, but in the works, works, works, works, and a large numbe

The railroad informationization had about until now 30 years from the 20th century the beginning of 70's, the information technology in guest window department's and so on bill of lading system, train dispatch, transportation management applications is comprehensive and is thorough, but in machine m

Railway information from has been around 30 years in the early 1970 of the 20th century, information technology in passenger ticket system, train schedules, transportation management application window, such as departments of more comprehensive and in-depth, but in the maintenance and operations, pu