... low cardiac output ==> 心输出量下降 low carrier modulation ==> 低载频调制,弱载波调制 low cement content ==> 低水泥用量 ...
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... 源 source; fountainhead 弱载波调制 low carrier modulation 弱原海豚 spotted dolphin ...
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Orthogonal Multi-Carrier Modulation(OMCM) is adopted to overcome the frequency selectivity and time variation of low-voltage power line channel.
为克服低压电力线信道的频率选择性和时变性,系统采用正交多载波方式传输信息。
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