| http://www.w3.org/ns/prov#value | - (n???12)fi???f],n=0,???1,???2,???. (25)For the second harmonic US modulation, the spectrum of the scattered light by the second harmonic US is S???(f)=A???(f)??????????????(f???nfi), (26)where A???(f) is the envelope of the second harmonic and n is an integer.
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