
Electroacoustics - Audio-frequency induction loop systems for assisted hearing Part 1: Methods of measuring and specifying the performance of system components
出版:International Electrotechnical Committee

專家解讀視頻
Electroacoustics - Audio-frequency induction loop systems for assisted hearing Part 1: Methods of measuring and specifying the performance of system components
出版:International Electrotechnical Committee
專家解讀視頻