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[会议论文] 作者：Hoi-yan Cheung,Yat-sze Choy,Kin-tak Lau,Liang Wu,
来源：第七届亚澳复合材料会议 年份：2010
Low frequency noise component in the air conditioning and engine facility is extremely difficult to deal with as it cannot be absorbed by the existing sound absorbing materials for ventilating ductwor...
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