
Acoustics; Audiometric Test Methods; Basic Pure Tone Air And Bone Conduction Threshold Audiometry
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Acoustics; Audiometric Test Methods; Basic Pure Tone Air And Bone Conduction Threshold Audiometry
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻