Both parallel resonance and series resonance are the two important parts of harmonic resonance problem.

串联谐振与并联谐振共同组成谐振问题的两个重要分支.

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And parallel resonance, the loop ends of the voltage maximum, and with the current phase.

而并联谐振时, 回路两端的电压达到最大值, 且与电流同相.

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