Breadth power supply electric voltage short circuit auto protect.
宽电源电压,短路自动保护。
The compensatory method is a method of measuring electric voltage.
补偿法是精确测量电压的一种测量方法。
The electric voltage echo coefficient provides dependable theories to the power cable fault location.
电压反射系数为电力电缆故障测距提供了可靠的理论依据。
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