GB/T 3222.2-2022 English PDF (GBT3222.2-2022)
GB/T 3222.2-2022 English PDF (GBT3222.2-2022)
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GB/T 3222.2-2022: Acoustics - Description, measurement and assessment of environmental noise - Part 2: Determination of sound pressure levels
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GB/T 3222.2-2022: Acoustics - Description, measurement and assessment of environmental noise - Part 2: Determination of sound pressure levels