The results showed that the OSB wallbord composed by OSB,air and glass wool had a good sound absorption property,specially for low frequency sound.
英
美
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結果表明,由定向結構板、空氣層、玻璃棉構成的復合墻體在低頻率范圍內會(huì )出現共振現象,吸聲性能比單層定向結構板有顯著(zhù)的增加,但在高頻率范圍內變化較??;
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国内精品美女A∨在线播放xuan