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- sound wave reflection method 声波反射法
- Research shows that stress wave reflection method can not only detect the anchoring position and anchoring length, but also indirectly detect the bolt anchoring force through anchor wave velocity. 研究结果表明，应力波反射法不仅可以检测锚杆的锚固位置和锚固长度，而且能由锚固体波速间接检测锚杆的锚固力大小。
- Transmission equation of acoustic wave in layered media is given.By numerical calculation, the effects of acoustic parameters of each layer on the sound wave reflection and attenuation is analyzed. 摘要本文给出了声波在多层介质中的传播方程，通过数值计算，分析了各层参数对分层吸声结构声学性能的影响规律。
- the stress-- wave reflection method 应力波反射法
- Probe into the Improvement of Test Reliability of Stress Wave Reflection Method 提高应力波反射法检测信度的探讨
- A process for determining the location of objects by emitting sound waves and analyzing the waves reflected back to the sender by the object. 回声定位法一种通过先发出声音，然后分析被物体反射回发送者的声波并决定物体方位的方法
- Detecting Underground Water-Bearing Caves by Seismic Transverse Wave Reflection Method 地震横波反射法探测含水洞穴的研究
- Numerical Simulation and Experimental Study of Stress Wave Reflection Method for Integrity Test of Concrete Pile 应力波反射法测混凝土桩完整性的数值模拟及实验研究
- Stress Wave Reflection Method Used to Infer the Abnormalities of Bearing Stratum Supporting a Rock-Socked Pile 应力波反射法推断嵌岩桩持力层异常
- They were studying the reflection of sound waves. 他们在研究声波的反射。
- Notable Problems in Dynamic Measure of Pole Body Integration by Stress Wave Reflection Method 应力波反射法动测桩身完整性应注重的几个问题
- Sound waves are measured by their amplitude. 声波是根据其振幅来测量的。
- Sound waves will reflect back from a solid surface. 音波将会从坚固的表面反射回去。
- THE APPLICATION OF THE HIGH DAMPING WAVE DETECTOR TO THE LONGI- TUDINAL WAVE REFLECTION METHOD IN SHALLOW SEISMIC EXPLORATION 高阻尼检波器在浅层地震勘探纵波反射法中的应用
- Where there is a sound,there is sound wave. 哪里有声音，哪里就有声波。
- Where there is a sound, there is sound wave. 哪里有声音，哪里就有声波。
- A device for projecting sound waves, as in a loudspeaker. 角状扩音器一种用来产生声波的装置，如扬声器
- Repetition of a sound by reflection of sound waves from a surface. 回声因表面反射声波而引起的声音重复
- To repeat(a sound) by the reflection of sound waves from a surface. 发出回声表面反射声波而重复的声音
- radio wave reflection method 无线电波反射法
