... XIAN RAILWAY SIGNAL FACTORY 西安铁路信号工厂 railway signal and interlocking 铁路信号和联锁 railway signal equipment 铁路信号设备 ...
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Railway signal equipment manufacture, marketing.
信号 器材制造、销售。
The paper summarizes the current status and developing trend of mechanical structure of railway signal equipment;
全面概述了铁路信号设备机械结构的现状及发展趋势；
The normal operation of the electric equipment in the railway signal equipment has played an important role in the safety operation and operation efficiency.
铁路信号设备中电气集中设备的正常运行对行车安全和行车效率起着举足轻重的作用。
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