
Acoustics - Determination Of Sound Power Levels Of Noise Sources Using Sound Pressure - Survey Method Using An Enveloping Measurement Surface Over A Reflecting Plane
出版:Polish Committee for Standardization

專家解讀視頻
Acoustics - Determination Of Sound Power Levels Of Noise Sources Using Sound Pressure - Survey Method Using An Enveloping Measurement Surface Over A Reflecting Plane
出版:Polish Committee for Standardization
專家解讀視頻