| 1. | Preferred frequencies for the acoustical measurement
声学测量中的常用频率 |
| 2. | En 60825 - 1 a1 - 1999
噪声;声学测量;声强;声源;声学 |
| 3. | En 60925 a2 - 1999
管;声学测量;消声器;声学 |
| 4. | Preferred frequencies , frequency levels , and band numbers for acoustical measurements
声学测量的优先选择频率频率级和频带数 |
| 5. | Acoustics - assessment of noise annoyance by means of social and socio - acoustic surveys
声学.用社会和社会声学测量法评定噪声干扰 |
| 6. | 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 |
| 7. | Test method for vertical rebound characteristics of sports surface ball systems ; acoustical measurement
球类运动场垂直回弹特性试验方法.声学测量 |
| 8. | Standard test method for vertical rebound characteristics of sports surface ball systems ; acoustical measurement
球类运动场垂直回弹特性的标准试验方法.声学测量 |
| 9. | 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 |
| 10. | Acoustics - in situ characterization of the acoustic qualities of road surfaces - pass by acoustic measurement - part 2 : controlled pass - by method
声学.道路表面音质的现场表征法.旁路声学测量.第2部分:受控的旁路法 |
