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Chinese National Standards
中華民國國家標準
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"silencers " CNS Standards List

A-Civil Engineering & Architecture
CNS 15256    2021 Edition
Acoustics – Laboratory measurement procedures for ducted silencers and air-terminal units – Insertion loss, flow noise and total pressure loss
聲學－風管消音箱及空氣終端單元之實驗室量測程序－插入損失、氣流噪音及總壓力損失

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