
Bs En Iso 389-3 - Acoustics - Reference Zero For The Calibration Of Audiometric Equipment - Part 3: Reference Equivalent Threshold Force Levels For Pure Tones And Bone Vibrators
出版:British Standards Institution

專家解讀視頻
Bs En Iso 389-3 - Acoustics - Reference Zero For The Calibration Of Audiometric Equipment - Part 3: Reference Equivalent Threshold Force Levels For Pure Tones And Bone Vibrators
出版:British Standards Institution
專家解讀視頻