
BS ISO 3745. Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Precision methods for anechoic test rooms and hemi-anechoic test rooms
出版:British Standards Institution

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BS ISO 3745. Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Precision methods for anechoic test rooms and hemi-anechoic test rooms
出版:British Standards Institution
專家解讀視頻