備用電源保護(hù)裝置 standby lunar power supply: 月球飛船備用電源standby power supply: 備用電源sps switching power supply: 電源箱supply switching power: 交換式電源供應(yīng)switching mode power supply: 開關(guān)型電源下載手機(jī)詞典可隨時隨地查詞查翻譯