zero-phase potential transformer 零相电压互感器 zero-phase voltage transformer 零相电压互感器 zero-phase-sequence ammeter 零相序电流表 ..
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zero-phase current transformer 零相电流互感器 zero-phase potential transformer 零相电压互感器 zero-phase voltage transformer 零相电压互感器 ..
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零相序电压互感器 zero-phase-sequence potential transformer ; sequence potential transformer
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