自动后备供电系统的英文

• automatic backup system

• 自动:    voluntarily; of one's own ac ...
• 后备:    reserve
• 供电系统:    power-supply system; feed sy ...
• 自动化供电系统:    automated power supply system
• 供电系统:    electric power system sistema de suministrcion electrica; electricity grid; electricity supply, wiring apparatus or equipment; feed system; power supply system; power-supply system