Ground signals are removed from high-speed railway, and on-board equipment directly pick up signals from ground equipment to control train operation.
高速铁路取消地面信号机，车载设备直接从地面设备提取信号控制机车运行。
Ground signals are removed from high-speed railway, and on-board equipment directly pick up signals from ground equipment to control train operation.
高速铁路取消地面信号机，车载设备直接从地面设备提取信号控制机车运行。
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