zero-phase-sequence potential tra former
zero-phase-sequence current tra former 零相序电流互感器 zero-phase-sequence potential tra former 零相序电压互感器 zero-phase-sequence voltmeter 零相序伏特计 ..
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zero-phase-sequence potential tra former
零相序互感器
以上为机器翻译结果，长、整句建议使用 人工翻译 。