1、 IEC 60268-4 Edition 5.0 2014-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Sound system equipment Part 4:Microphones quipements pour systmes lectroacoustiques Partie 4:Microphones IEC 60268-4:2014-06(en-fr)Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on N
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