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说明了信号机的重要作用及应采取的维修体制,指出了目前对其监测存在的问题及应监测的主要对象,提出了对信号点灯电路系统监测的方案。
The important function of the signal machine and the maintenance system to be adopted are described. The problems existing in the monitoring and the main objects to be monitored are pointed out. The scheme of monitoring the signal lighting circuit system is put forward.