"Precision Levels" CNS Standards Search Result

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	CNS 14654 - English Version 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准─迴響室的精密級方法 - 英文版
	CNS 14657 - English Version 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 - 英文版
	CNS 8190 - English Version Precision Square Levels 精密方形水平儀 - 英文版
	CNS 8191 - English Version Precision Levels 精密水平儀 - 英文版

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