"Precision Levels" CNS Standards List |
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CNS 13304
2018 Edition Precision Levels 特殊用精密級電位計 |
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CNS 14654
2017 Edition Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for reverberation rooms 聲學─利用聲壓測定噪音源聲功率位準─迴響室的精密級方法 |
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CNS 14657
2017 Edition Acoustics - Determination of sound power levels of noise sources - Precision methods for anechoic and semi-anechoic rooms 聲學─測定噪音源聲功率位準的精密級方法─用於無響室和半無響室 |
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CNS 7549
2017 Edition Precision Square Levels 精密平板 |
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CNS 14657
2002 Edition Acoustics - Determination of sound power levels of noise sources - Precision methods for anechoic and semi-anechoic rooms 聲學－測定噪音源聲功率位準的精密級方法－用於無響室和半無響室 |
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CNS 14654
2002 Edition Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for reverberation rooms 聲學－利用聲壓測定噪音源聲功率位準－迴響室的精密級方法 |
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