可以实现虚拟应答器、虚拟信号机，减少轨旁设备及维护工作量，大大降低系统成本。
It can reduce the cost of the train positioning system greatly by reducing trackside equipments and workload of maintenance.
可以实现虚拟应答器、虚拟信号机，减少轨旁设备及维护工作量，大大降低系统成本。
It can reduce the cost of the train positioning system greatly by reducing trackside equipments and workload of maintenance.
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