AC Mains Supply 交流电网电源
DC Mains Supply 直流供给电源
Nominal AC Mains Supply Voltage 额定交流电源电压
interruption of mains supply 市电停电
MAINS SUPPLY TRANSFORMER 网电源变压器
oil supply mains 供油母管 ; 供油系统
public supply mains 城市供应管 ; 城市供应干线
Mains Power Supply Testers 电力电源测试装置
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This produces a waveform of one polarity operating at a frequency twice that of the mains supply.
经过整流后得到的是一个频率为交流电源两倍的单极波形。
Heat meters designed to operate from an ac mains supply shall be wired in accordance with wiring regulations applicable.
温度传感器由AC交流电源供应，配备的电线符合电线规章。
Numerous types of inverter are available, but not all are suitable for use when feeding power back into the UK mains supply.
许多类型的变换器是通用的，但不是所有的适合使用，当能连回到英国的供应。
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