黄二小要奋斗
电源 [词典] source; current source; electric source; power pack; electrical source; [例句]一些型号的电池可以连接到直流电源上进行充电。Some kinds of batteries can be recharged by connecting them to a source of directcurrent.
草心草心丶
电源 [diàn yuán] [词典] source; current source; electric source; power pack; electrical source; [例句]它是由电源或者电池供电的。It is mains or battery powered.