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题在农村野外作业时,常使用“串联灯”作临时照明.所谓“串联灯”就是把额定电压为220伏的两只灯泡串联起来,接在380伏的电源上使用.
In the field work in rural areas, the “series light” is often used for temporary lighting. The so-called “series light” is to connect two light bulbs with a rated voltage of 220 volts in series and use them on a 380 volt power supply.