接地和电源
Power supply and grounding
爆电电源
ferroelectric power supply
泵电源电路的运行
pump power circuit operation
标准电源电压不足时的印刷电路板
normal source undervoltage pc card
标准电源电压监控板
normal source voltage monitoring card
不断电电源供给
power supply， uninterruptible
power supply
Uninterruptible
不停电电源(UPS)
UPS-Uninterrupted Power Supply
厂用电电源
high voltage auxiliary power
充电电源
dc-ups
capacitor charging power supply
charging power supply
charge power supply
大功率岸电电源的研制
Development of the High-power Shore Power Supply
地电地磁观测
observation of geoelectricity and geomagnetism