Investigators are examining whether the electronic signaling system failed.

调查人员正在检查电子信号系统是否出现故障。

In eastern India, the investigation into Friday night's train disaster found that an error in the signaling system is what led to the crash.

在印度东部，有关周五晚火车事故的调查发现，导致事故的原因是信号系统出错。

The testing items mainly include track geometry, electric traction power supply, communication and signaling system, passenger and freight service system, noise, vibration, and electromagnetic environment.

检测项目主要包括轨道几何状态、电力牵引供电、通信信号系统、客货动力学、噪声振动与电磁环境等。

In fact, the horn doesn't work  when the aircraft is in flight because the signaling system is turned off.

事实上，当飞机在飞行中时，喇叭是不工作的，因为信号系统是关闭的。

India's railway minister says the fatal train derailment on Friday was caused by an error in the electronic signaling system that led a train to wrongly change tracks.

印度铁道部长表示，星期五发生的火车脱轨事故是由电子信号系统的错误导致火车错误地改变轨道造成的。