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南京长江大桥列车接近安全防护报警系统 ,经过改造后不仅系统的故障率明显降低 ,而且提高了报警系统运行的可靠性和灵活性
Nanjing Yangtze River Train close to the safety protection alarm system, after the transformation not only significantly reduce the failure rate of the system, but also improve the reliability and flexibility of the alarm system operation