RM新时代手机版下载-首页

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    消聲室
    
      
    消聲室（半消聲室/消聲箱）是聲學實驗和噪聲測試中極其重要的實驗場所，其作用是提供一個自由場或半自由場空間的低噪聲測試環(huán)境。
    
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RM新时代手机版下载-首页

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