| 1. | Air conduction hearing aid
空气传导助听器 |
| 2. | Acoustics - pure tone air conduction threshold audiometry - for hearing conservation purposes
声学纯音气导听阈测定听力保护用 |
| 3. | Provisional head and torso simulator for acoustic measurements on air conduction hearing aids
空气传导助听器声学测量用临时头戴筒式模拟器 |
| 4. | Specification for pure tone air conduction threshold audiometry for hearing conservation purposes
听力保护用纯音色空气传导阈值听力测定规范 |
| 5. | Acoustics . pure tone air conduction threshold audiometry for hearing conservation purposes
声学.为保护听力而进行的纯音空气传导阀值听力测定法 |
| 6. | Provisional head and torso simulator for acoustic measurements on air conduction hearing aids ; identical with iec 60959 : 1990
空气传导助听器声学测量用临时头部模拟器和躯干模拟 |
| 7. | Acoustics ; pure tone air conduction threshold audiometry for hearing conservation purposes identical with iso 6189 : 1983 ; german version en 26189 : 1991
声学.用于保护听觉的纯音调空气传导阈值的听力测定法 |
