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机床上的指示灯,不仅给操作者照明,还美化了机床。指示灯泡的工作电压是6.3V,由于电压波动,变压器次级电压都在7～8V 左右,这样,指
The lights on the machine not only illuminate the operator but also beautify the machine. Indication light bulb voltage is 6.3V, due to voltage fluctuations, the transformer secondary voltage is about 7 ~ 8V, so that means