direct current
柯林斯词典
1. N-VAR A direct current is an electric current that always flows in the same direction. The abbreviation is also used. 直流電
Some kinds of batteries can be recharged by connecting them to a source of direct current. 有些型號的電池在接入直流電源時就能充電。
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direct current (direct currents)
剑桥词典
- electrical current that moves in one direction only
直流電
比較
alternating current 返回 direct current