moving block system

基本解释

In fact, the fallback mode is a simple operation mode of the moving block system in the non-ATC mode.
後備模式是移動閉塞系統在非ATC模式下的一種簡化運營。
This paper describes the origin, definition and function of fallback mode of moving block system for urban rail transit.
介紹城市軌道交通中，移動閉塞系統的後備模式的由來、定義及其功能。
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.
但是儅環線、多個擴頻電台、中央控制單元（“集中式”移動閉塞系統）等設備出現故障時，系統將無法工作在ATC模式下。