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Voice frequency (Sfrwbfmv)

Physical phenomena (S)
     Related Term (Associative): Physics (Tpx)
    Electromagnetism (Sf)
         Related Term (Associative): Electromagnetic devices (Qtbf)
        Electromagnetic radiation (Sfr)
             Use For: Radiation
            Electromagnetic waves (Sfrw)
                 Related Term (Associative): Waves (Smw)
                Electromagnetic wave phenomena (Sfrwb)
                    Frequency (Electromagnetism) (Sfrwbf)
                         Use For: Frequencies
                        Audio frequency (Sfrwbfm)
                             Use For: Sonic frequency; Sound frequency
                            Voice frequency (Sfrwbfmv)