[電] 后備電源指示燈 backup power: 備份電源backup power source: 備用電源; 后備電源backup reserve power: 后備電源electric power backup: 電源備用設(shè)備power indicator: 電源指示器; 功率指示計(jì); 功率指示器; 功率指針下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
