At present, the train signal systems include the fixed block system and the moving block system.
目前列车信号控制系统中有固定闭塞系统和移动闭塞系统。
This paper describes the origin, definition and function of fallback mode of moving block system for urban rail transit.
介绍城市轨道交通中,移动闭塞系统的后备模式的由来、定义及其功能。
But when loops, several spread-spectrum radios and centre control unit (moving block system with 'centralized' structure) fail, the system can not be running in the ATC mode.
但是当环线、多个扩频电台、中央控制单元(“集中式”移动闭塞系统)等设备出现故障时,系统将无法工作在ATC模式下。
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