Moving - block signaling system indicates the development tendency of urban rail transit signaling system 移动闭塞是城市轨道交通信号系统的发展方向。
Kernel signal handling is rather elaborate , because the posix semantics allows processes to temporarily block signals 内核信号处理是很复杂的过程,因为posix信号语义允许进程临时禁止某些信号的接收。
The paper examines the principles of communication based moving - block signaling system , its typical structure and its practical methods 本文讨论了基于通信的移动闭塞信号系统的原理、典型结构和实现方式。