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本文指出了东风_4B型机车可调光汞氙灯电路存在的电阻抽头易氧化松动和转换开关易烧损的问题,分析了产生的原因,提出了改进建设。
This paper points out the problem that the resistance tap of the Dongfeng _4B locomotive dimmable xenon lamp circuit is prone to oxidation loose and the switch easy to burn out, analyzes the causes and puts forward the improvement.