Audiometers ; part 2 : equipment for speech audiometry 测听计.第2部分:语言测听装置
2.
Electroacoustics - audiological equipment - part 1 : pure - tone audiometers 电声学.测听设备.第1部分:纯音测听计
3.
Iec 6 electroacoustics - audiological equipment - part 1 : pure - tone audiometers iec 60645 - 1 : 2001 ; german version en 60645 - 1 : 2001 电声学.听觉病矫治学设备.第1部分:纯音测听计
4.
Electroacoustics - simulators of human head and ear - acoustic coupler for the calibration of supra - aural earphones used in audiometry 电声学.人头和耳模拟器.用于测听计的超级听力耳机校正用听力耦合器