Acoustics . audiometric test methods . part 2 : sound field audiometry with pure tone and narrow - band test signals 声学.听力测定试验方法.第2部分:纯音和窄频带信号声场测听术
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Acoustics - audiometric test methods - part 2 : sound field audiometry with pure tone and narrow - band test signals ; identical with iso 8253 - 2 : 1992 声学.听力试验方法.第2部分:纯音和窄频带信号声场测