derailer
n. [铁路] 脱轨器
例句
This article expounded the designing principle, technical features and functions of concentrated-control interlocking derailer by adopting the digital sensors and video monitors.
本文介绍采用数字传感器、视频监控技术的集控联锁脱轨器系统的设计原理、技术特点及功能。