1.
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
2.
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
3.
Echo: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.
4.
Then the snow's surface will help to send back sound waves.
这时雪的表面就会帮助反射声波。
5.
pulsed echo ultrasonoscope
回波反射式超声诊断仪
6.
THE GENERALIZED REFLECTION-TRANSMISSION COEFFICIENT METHOD IN ACOUSTIC WELL LOGGING
声波测井中的广义反射、透射系数方法
7.
Visco-acoustic transmission waveform inversion for velocity structure in space-frequency domain
频率域粘弹性声波透射波形速度反演
8.
Single Phase Unidirectional DART Structure SAW Filter
单向单相分布式声反射结构的声表面波滤波器
9.
The Reflection and Trans Mission in Two Mediums Demarcation When Sound Wave Vertical Incidence;
声波垂直入射在两种介质界面处的反射和透射
10.
The reflected sound waves are then converted into a picture.
反射回来的声波然后转化成照片。
11.
Analysis of the Acoustic Reflection from the Underwater Elastic/Piezoelectric Bi-laminated Plate;
水下弹性/压电双层板的声波反射分析
12.
Studies on the Condensation and Esterification under Microwave or Ultrasound Irradiation;
微波或超声波辐射下缩合和酯化反应的研究
13.
The Identification on Reflection Waveform of 61° and 45° Defect by Ultrasonic Testing
超声波检测中61°和45°缺陷反射波形的识别
14.
Study on the Characters of Ultrasonic Pulse Field Based on the Means of Reflection by Small Ball
基于小球反射法的超声脉冲波声场特性研究
15.
The inverse acoustic scattering problem is a typical Math-matical Physics inverse problem.
声波反散射问题是一个典型的数学物理反问题。
16.
Studies on the Knoevenagel Reaction and Pinacol Coupling Reaction Under Ultrasonic Irradiation;
超声波辐射下，Knoevenagel反应和片呐醇合成反应的研究
17.
Negative coefficients occur where there is a decrease in acoustic impedance across the reflecting interface.
当反射界面上下两侧的声波组抗降低时，反射系数就会出现负值。
18.
The Study on the Simulation of the Borehole Acoustic Reflection Imaging Logging Tool and It's Waveform Processing Method;
声反射成像测井仪器仿真及波形处理技术研究