
【国外标准】 Acoustics - Determination of sound power levels of noise sources Precision methods for anechoic and hemi-anechoic rooms
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标准号:
AS 1217.6-1985
标准名称:
Acoustics - Determination of sound power levels of noise sources Precision methods for anechoic and hemi-anechoic rooms
英文名称:
Acoustics - Determination of sound power levels of noise sources Precision methods for anechoic and hemi-anechoic rooms标准状态:
被代替-
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