| 1. | The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band .
声发射源与接收讯号传感器间的距离以及环境噪声的电平是选择频带的主要依据。 |
| 2. | Measuring method for environmental noise of urnan area
城市区域环境噪声测量方法 |
| 3. | Measurement of environment noise and data measured
环境噪声测试方法及测试数据 |
| 4. | Forecast models of urban noise and their application
城市环境噪声污染预测模型及应用 |
| 5. | Acoustics - measurement method of environmental noise
声学环境噪声测量方法 |
| 6. | Ambient noises , you know , just in case
环境噪声，你知道的，要是万一… … |
| 7. | Impulse sound propagation for environmental noise assessment
环境噪声评定用脉冲声响传播 |
| 8. | A hydrid wind - generated noise model of normal mode and ray
射线混合风关海洋环境噪声模型 |
| 9. | Monitoring and analysis of environmental noise
环境噪声监测与分析 |
| 10. | Adaptive environment noise processing based on reference model
基于参考模型的自适应环境噪声处理 |
