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汽车大灯上的三根线分别是什么线

更新时间: 2020-09-14 00:00:00     

前大灯的三根电线分别是两根火线、一根零线。前大灯要实现远光、近光两种功能,必须要有两个开关电器来控制实现,所以要有这两根火线。前大灯要能点亮必须有电压差,所以另一根是零线。

关键词: 汽车 别是 什么

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