| 1. | Acoustics - measurement of the in situ sound attenuation of a removable screen
声学可移动屏障声衰减的现场测量 |
| 2. | Acoustics - measurement of the in situ sound attenuation of a removable screen
声学.可移动声屏障声衰减的现场测量 |
| 3. | Acoustical attenuation measurement
声衰减测量 |
| 4. | Acoustic attenuation constant
声衰减常数 |
| 5. | Test method for laboratory measurement of the sound transmission loss of door panels and door systems
门板和门系统声衰减的实验室测量方法 |
| 6. | Acoustics - hearing protectors part 1 : subjective method for the measurement of sound attenuation
声学护听器第1部分：声衰减测量的主观方法 |
| 7. | Acoustics - hearing protectors - sound attenuation of hearing protectors - subjective method of measurement
听力保护器的声衰减.主观测量法 |
| 8. | Acoustics - measurement of office screen sound attenuation under specific laboratory conditions
声学规定实验室条件下办公室屏障声衰减的测量 |
| 9. | Acoustics ; hearing protectors ; subjective method for the measurement of sound attenuation ; identical with iso 4869 - 1 : 1990
声学.听力保护器.第1部分:声衰减的主观测量法 |
| 10. | At present the equation of insert loss hasn ' t indicated the effect of absorption , only refers to the effect of sound insulation
摘要目前对声屏障的插入损失计算所用的公式，没有体现材料吸声对绕射声衰减的作用。 |
