
Hearing Aids; Methods Of Measurement Of Performance Characteristics Of Hearing Aids Under Simulated In Situ Working Conditions
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Hearing Aids; Methods Of Measurement Of Performance Characteristics Of Hearing Aids Under Simulated In Situ Working Conditions
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻