A.蓄電池裝置 B.靜止型不間斷供電裝置UPS(UninterruptedPowerSupply) C.應(yīng)急電源裝置EPS(EmergencyPowerSupply) D.機(jī)械儲(chǔ)能電機(jī)型不間斷供電裝置
A.G1級 B.G2級 C.G3級 D.G4級
A.23% B.19% C.17% D.11%