... 单极双锥天线 uniple biconical natenna 单极脉波调变 unipolar modulation 单极性讯号 unipolar signal ...
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Based on the power supply for railway signal system, this dissertation investigates an inverter controlled by the strategy of unipolar modulation.
本文以铁道信号电源为背景，研究了一种单极性调制的逆变电源。
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