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自九十年代以来，以高速、重载为特征的现代化铁路进入了一个崭新的阶段。铁路点多线长，如何防止和处理行车事故和突发性自然灾害是铁路部门确保安全、正点、畅通的一个课题。于是用来指挥、调度、监督和处理事故和灾害的铁路应急通信系统便应运而生，通过铁路应急通信系统可
Since the nineties modern railways characterized by high speed and heavy load have entered a completely new stage. How to Prevent and Handle Traffic Accidents and Sudden Natural Disasters? It is a task for railway departments to ensure safety, punctuality and smoothness. Therefore, the railway emergency communications system used to command, dispatch, supervise and handle accidents and disasters came into being. Through the railway emergency communications system