"Electroacoustics" CNS Standards List| Electric motor | Drive Chain | Hydrochloric acid | Reliability Assured | Cross Recesses | Grape | Normal Butyl | Needle Bars | |
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CNS 7129
2015 Edition Electroacoustics – Sound level meters – Part 1: Specifications 電聲學－聲音位準計－第1部：規格 |
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CNS 7129
2015 Edition Electroacoustics – Sound level meters – Part 1: Specifications 電聲學－聲音位準計－第1 部：規格 |
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