
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

专家解读视频
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
专家解读视频