高速铁路的发展对铁路线路和信号均提出了更高要求。介绍ZYJ7型电动液压道岔电路,分析ZYJ7型电动液压道岔控制电路的常见故障并提出了处理方法。%The development of high speed railway puts forward higher requirements on line and signal, this pa-per introduces ZYJ7 type electrohydraulic switch circuit , analysis common faults of ZYJ7 type electrohydraulic con-trol circuit switch and processing methods are proposed.
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