Sound absorption coefficient measurement of aluminium perforated wall using sound intensity technique /

Ижил төстэй зүйлс

• Sound absorption coefficient measurement of aluminium perforated wall using sound intensity technique [electronic resource] /
  -н: Ong, Ewe Soon, 1983-, зэрэг
  Хэвлэсэн: (2010)
• Sound absorption and sound absorption coefficients by the reverberation room method
  -н: 7744 American Society for Testing and Materials
• The absorption of sound by perforated linings /
  -н: 343104 Hughes, I. J., зэрэг
• Normal incidence sound absorption coefficient of direct piercing carved wood panel with floral pattern /
  -н: 308814 Mohd. Zamri Jusoh 1979-, зэрэг
  Хэвлэсэн: (2013)
• The absorption of sound by perforated linings/
  -н: 343104 Hughes, I. J., зэрэг