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railway signaling
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railway signaling
铁路信号
为提高铁路运输生产的能力、效率和管理水平,结合机车车辆和线路基础设施性能等条件,向相关作业人员发出信息、指示和命令,指挥并控制机车车辆安全运行的技术和装备。
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