| 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.可移动屏蔽就地声音衰减的测量 |
| 3. | 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 |
| 4. | 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 |
| 5. | 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 |
| 6. | 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 |
| 7. | Acoustics . hearing protectors . part 1 : subjective method for the measurement of sound attenuation
声学.听力保护器.第1部分:声音衰减测量的主观方法 |
| 8. | Standard test method for airborne sound attenuation between rooms sharing a common ceiling plenum
共用一个天花板中通风系统的房间之间气载噪声衰减率的标准测试方法 |
| 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. | This will appeal to engineer in the design process of the public building air condition system , satisfied the room function request , at the same time , proceeding sound attenuation sound absorption design of the air condition system reasonably . according to the noise of air - condition system and the pipe regenerative noise , compute demanded sound deadening capacity . designing and choosing the right type and equally outline measures
目前，在建筑设计过程中通常首先计算空调设备运行时产生的设备噪声以及空调管道工作时产生的再生噪声；然后根据建筑设计手册中相应的噪声允许值的规定计算出系统所必需的消声量；最后根据空调系统的实际情况，科学地确定适宜的消声器类型和规格，以此达到使用空间的噪声要求。 |
