电源能量效率
battery energy efficiency
电源拟制比
power supply rejection ration
电源配置
power configuration
power supply configuration
power sources distribution
power source devices
power disposing
电源配置及监视
allocation and monitoring of power supply
电源频率
power frequency
mains frequency
line frequency
power supply frequency
Frequency
frequency of electric source
电源频率偏差
power frequency deviation
电源频率指示器
mains frequency indicator
电源切换
electrical source exchange
switching over