平滑直流電流 direct current: 【電學】直流電〔略作 D. C. 或 d. c.〕。 direct-current: 陽極直流電阻; 直流direct-current direct-current converter: 直流alternating current to direct current: 交流amplifier direct-current: 直流電放大器下載手機詞典可隨時隨地查詞查翻譯