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    CNS 7779-2 - English Version
    Industrial fans − Determination of fan sound power levels under standardized laboratory conditions − Part 2 : Reverberant room method
    工業用風機-在標準化實驗室條件下風機聲功率位準測定- 第2 部: 迴響室法 - 英文版

    CNS 7779-1 - English Version
    Industrial fans − Determination of fan sound power levels under standardized laboratory conditions − Part 1: General overview
    工業用風機-在標準化實驗室條件下風機聲功率位準測定-第1 部:概觀 - 英文版

    CNS 7779-3 - English Version
    Industrial fans – Determination of fan sound power levels under standardized laboratory conditions − Part 3: Enveloping surface methods
    工業用風機-在標準化實驗室條件下風機聲功率位準測定-第3 部:包絡面法 - 英文版


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