| 1. | Road traffic noise reducing devices - specifications
道路交通减噪装置.规范 |
| 2. | Road traffic noise reducing devices - specifications ; german version en 14388 : 2005
道路交通减噪装置.规范 |
| 3. | Wavelet analysis ' application in the noise reducing of dynamic testing signals
小波分析在动态测试信号降噪中的应用 |
| 4. | The noise reduces the visual quality of digital images and resulting printouts
噪音减少数位影像和产生的印出视觉质量。 |
| 5. | Road traffic noise reducing devices - non - acoustic performance - general safety and environmental requirements
道路交通噪声降低设备.非声学性能.一般安全和环境要求 |
| 6. | Road traffic noise reducing devices - non - acoustic performance - mechanical performance and stability requirements
道路交通降噪设备.非声学性能.机械性能和稳定性要求 |
| 7. | Road traffic noise reducing devices - procedures for assessing long term performance - non - acoustical characteristics
道路交通噪音减少设备.长期性能评估过程.非声学特性 |
| 8. | Road traffic noise reducing devices - non - acoustic performance - part 2 : general safety and environmental requirements
道路交通噪音降低装置.非声学性能.第2部分:一般安全和环保要求 |
| 9. | Road traffic noise reducing devices - non - acoustic performance - part 1 : mechanical performance and stability requirements
道路交通噪音降低装置.非声学性能.第1部分:机械性能和稳定性要求 |
| 10. | Road traffic noise reducing devices - test method for determining the acoustic performance - normalized traffic noise spectrum
道路交通噪音减低装置.测定声学性能的试验方法.标准化交通噪音频谱 |
