Acoustics - audiometric test methods - basic pure tone air and bone conduction threshold audiometry 声学测听方法纯音气导和骨导听阈基本测听法
2.
Acoustics - audiometric test methods - basic pure tone air and bone conduction threshold audiometry 声学.听力测定试验方法.基本纯音调空气和骨传导声测定
3.
Acoustics . audiometric test methods . part 1 : basic pure tone air and bone conduction threshold audiometry 声学.听力测定试验方法.第1部分:基本纯音空气传导和骨传导听阈测听术
4.
Acoustics ; audiometric test methods ; part 1 : basic pure tone air and bone conduction threshold audiometry ; identical with iso 8253 - 1 : 1989 声学.听力测试方法.第1部分:基本纯音的空气传导和骨