| 1. | Research overview of the relation between ultrasonic parameters and stress on rock
岩石声学参数与应力相关性研究综述 |
| 2. | Acoustic parameters measurement of viscoelastic material in median and high frequency
中高频段下的粘弹性材料声学参数测量 |
| 3. | Acoustics - measurement of the reverberation time of rooms with reference to other acoustical parameters
声学.根据其它声学参数测量厅堂混响时间 |
| 4. | Acoustics - measurement of the reverberation time of rooms with reference to other acoustical parameters
声学.比照其它声学参数测量室内的混响时间 |
| 5. | The normal modal wave number inversion is a potential inversion scheme in inverting the bottom parameters and work well
简正波波数反演方法具有应用于海底声学参数反演的潜力，效果良好。 |
| 6. | Two kinds of methods were used : acoustic impedance inversion ( all ) method and statistical characters extraction ( sce ) of sound echo method
主要研究了反演底质声学参数和统计特征量两种方法。 |
| 7. | In all method , the precision and stability of inverse results have been improved through mending the impulse response technique
在反演底质声学参数方法中，通过改进冲击响应提取方法，提高了反演精度和稳定性。 |
| 8. | The first task in the thesis is to make acoustic model . account practice transducer and other acoustic parameter " research and analyze arithinehc of echosotmder . research and analyze factors of influence system precision and me safety
论文中的首要工作是建立声学模型、计算出实际所需要的换能器以及其他的一些的声学参数、对测高的算法进行了研究分析、对影响系统精度以及准确正常工作的一些因素进行了分析。 |
| 9. | The material parameters are primaryly optimized . based on the analytical models of underwater anechoic coatings and the simulation research , the absorptive characteristics of some structures are analysed . some advice are provided on improving absorptive characteristic of anechoic coatings , and enhancing submarine ' s concealing ability
根据水下消声覆盖层解析模型理论和大量的仿真研究，本文分析了消声层一些结构声学参数的吸声特性，提出了一些改进消声层吸声性能，提高潜艇声隐身性能的建议。 |
| 10. | By means of the results obtained , such as the quantificational relationships between the rock ultrasonic wave parameters and the important formation conditions like pressures , and the half - quantificational relationships between the rock ultrasonic wave parameters and porosity and density of those rocks , and the relationships between rock ultrasonic wave parameters and the composition of rocks , we established the corresponding relationships between the ultrasonic wave parameters and depth under the main formation conditions ( indicating temperature and pressure gradient ) in tertiary of zhujiangkou basin , which should be very useful for the geophysical exploration
获得了岩石声学参数与压力等重要地层条件之间的定量关系，岩石声学参数与孔隙度和密度之间、以及与岩石组成之间的半定量关系，并建立了在珠江口盆地东部第三系主要地层条件下(指温度梯度和压力梯度)不同岩石类型的主要声学参数与深度之间的对应关系，该关系可为地球物理正演模型的建立提供基本参数、并为地震反演提供新的约束机制。 |
