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.
后备模式是移动闭塞系统在非ATC模式下的一种简化运营。
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。