
Acoustics; Determination of sound power levels of noise sources; Precision methods for anechoic and semi-anechoic rooms
出版:International Organization for Standardization

專家解讀視頻
Acoustics; Determination of sound power levels of noise sources; Precision methods for anechoic and semi-anechoic rooms
出版:International Organization for Standardization
專家解讀視頻