作者: Domingo Sancho-Knapik , Hector Calas , Jose Javier Peguero-Pina , Antonio Ramos Fernandez , Eustaquio Gil-Pelegrin
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摘要: … ultrasound to measure the ultrasound velocity in plates by … of the frequency of the thickness resonance [8]. air-coupled … and phase spectra of the thickness resonances of plant leaves…