为使系统的功率因数较高，采用电压源型负载串联谐振中频逆变器和频率跟踪技术。
In order to improve the power parameter further, the intermediate frequency inversion of an electric voltage power type series resonance and frequency trace technique are adopted.
为使系统的功率因数较高，采用电压源型负载串联谐振中频逆变器和频率跟踪技术。
In order to improve the power parameter further, the intermediate frequency inversion of an electric voltage power type series resonance and frequency trace technique are adopted.
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