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  1. Oxford American Dictionary

    notch filter

    • IPA[näCH ˈfiltər]
    • n.
      a filter that attenuates signals within a very narrow band of frequencies.

    • noun: notch filter, plural noun: notch filters

    • 更多解釋

    notch filter

    • n.
      a filter that attenuates signals within a very narrow band of frequencies.

    Oxford Dictionary