10kV standby power supply automatic switching device
auxiliary switching power supply
DC switching mode power supply
Automatic back-up power supply
character of power supply
ability of power supply
emergency power supply
应急电源
备用电源
应急供电
紧急电力供应
应急动力源
灵活应急电源(EPS)
保安电源
应急冷却
DC power supply
直流电源
直流供电
直流供电电源
直流电力供应
直流电压源
电力电源
直流共电
高精度磁铁稳流电源
直羚源
cutting of power supply
electricity power supply