As one of the mufti - carrier transmission technologies , OFDM can multipath fading effect with high frequency efficiency.

作为一种多载波技术,它具有抗多径干扰能力强 、 频谱利用率高等优点.

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And the berberine absorption peak at 345 nm decreases, that is, there is the fading effect.

345nm处的吸光度减弱, 即存在缔合微粒的减色效应.

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