Hot firings show that the frequency of the oscillating shock is close to the acoustic frequency.
热试结果表明，振荡激波的频率与声频相近。
In this paper two kinds of acoustic frequency technique which were applied in shipbuilding technology in shipyard are discussed.
本文讨论了两种已经在船厂船舶建造工艺上应用的声频技术。
The real arbitrary waveform generator that can generate single acoustic frequency signal modulated by Manning window and Gaussian window is developed.
成功地实现了汉宁窗、高斯窗调制的任意频率单音频信号的产生，达到了任意波形发生器的功能。
Mode conversion efficiency has been calculated as functions of acoustic frequency, interaction length, guiding layer thickness, and acoustic drive power density.
模式转换效率可化作声波频率、声光作用长度、波导厚度和声波功率密度的函数，并利用数值计算得出结果。
To prove the system can be used in underwater acoustooptic communications, with this system, the acoustic frequency and intensity of underwater sound source are detected.
为了证明系统能够应用于水下声光通信，进行了对水下声源发出的声波频率和强度的探测实验。
The following work has been done:(1) Analyzing the influence of acoustic frequency, acoustic pressure amplitude and initial bubble radius towards bubble dynamics respectively;
主要工作和结论为：（1）分析声场频率、声压和气泡初始半径对气泡动力学过程的影响。
The experimental results show that acoustic resistance of perforated plate is related to plate thickness, aperture diameter, numbers of aperture, acoustic frequency and airflow velocity.
研究表明：穿孔板的声阻与孔板厚度、孔径、穿孔数目、声波频率和气流速度等因素有关。
It does this by fitting small piezoelectric acoustic sensors to parts of the structure to detect the particular frequency of noise caused by a crack in aircraft-grade aluminium.
把小型压电声传感器安装到这种构造部位上，检测由航空级铝材裂纹所致的特定频率的噪音，靠这样就能监测飞机裂纹。
If a singer hits a pitch that matches the frequency of one glass, the glass might absorb so much acoustic energy that it will shatter; the other glasses remain unaffected.
如果一个歌手唱到一定的音高，那么与之频率相对应的酒杯就会共振，有时杯子吸收了太多的能量而碎掉，但是其他的杯子却安然无恙。
No organizations or individuals may use the same frequency or the same acoustic signals as those specially used by the State for civil air defense communications or air defense warning.
国家用于人民防空通信的专用频率和防空警报音响信号，任何组织或者个人不得占用、混同。
But for materials where you have vibrations, acoustic vibrations, those are low frequency.
但是对于一些有低频振动的材料，如声学振动。
The surface acoustic wave (SAW) sensor can transform the measured object into frequency output, viz a kind of digital signal output.
声表面波(SAW)传感器能将被测量转换成容易检测的频率信号，即一种准数字信号的输出。
Smooth, extended frequency response combines with wide dynamic capabilities and low distortion to provide acoustic performance that makes the unit idea for music playback and quality speech systems.
平滑，扩展频率响应相结合，提供声学性能，使音乐播放和质量的语音系统单位的想法与宽动态功能和低失真。
The7years 'applicable practices indicate that the frequency modulation technology with dc bus voltage ripples is very effective to suppress acoustic resonances.
7年的使用实践表明，直流脉动电压频率调制技术对抑制声谐振现象十分有效。
Like light waves, acoustic (sound) waves are characterized by a frequency, wavelength and propagation speed.
声波就和光波一样，是以频率、波长和传播速度为其特征。
At last, we recomposed some frequency band of wavelets, and the results can efficiently extract the features of acoustic emission signal.
最后通过对能反映源特征的频带信号进行重构，这样能更好更有效的提取声发射信号的本质特征。
The characteristic of linear and nonlinear responses between arc excited ultrasonic emission and excited frequency was realized by the received signal from the acoustic to the ultrasonic spectrum.
对受激电弧的声发射信号分析表明，从音频到超声频带，电弧声发射与激励频率之间存在着线性响应和非线性响应特征。
The effectiveness of the control depends upon the strength and frequency of the acoustic excitation but is insensitive to the emitting position.
声控分离的效果依赖于激励强度和频率，而对激励位置并不敏感。
The existence of various lacunas in bolt bonding system will cause the acoustic wave energy attenuation, phase aberration and frequency dispersion.
由于锚固体系中有不同大小和程度的缺陷，声波在传播过程中将产生能量衰减、相位突变及频散现象。
The wavelet transform is of good localization property in the domain of time and frequency, which provides a comprehensive application in processing acoustic wave.
小波变换同时有在时间域和频率域对信号进行局部化的特点，使其在声波信号处理中有着广泛的应用前景。
This paper studies two factors affecting the demulsification and dehydration effect of ultrasonic wave: frequency and acoustic intensity.
研究了影响起声波破乳脱水效果的两个因素；频率与声强。
In this paper, the boundary point method (BPM) is applied to the study of the non unique solution at characteristic frequency for exterior acoustic radiation caused by vibrating body.
文章利用边界点法，对振动体外部声辐射在特征频率处解的非唯一性问题进行了研究。
When the frequency is low, the recorded acoustic amplitude value is high. So the evaluation result is reliable.
发现频率低时，由于记录到的声幅值较高，评价结果可靠。
In this paper, the other question we discuss is nonlinear acoustic-optical effect from liquid surface waves at low-frequency.
本文另一部分内容研究了液体表面低频声波的非线性声光效应。
The removal of ultrafine particles in coal-fired fumes was studied experimentally based on lower frequency and higher intensity acoustic field.
对燃煤超细颗粒物在低频率高强度声场中团聚清除效果进行了实验研究。
The structure provides a lumped acoustic impedance having an acoustic resistance proportional to frequency, and an acoustic inertance that is inversely proportional to frequency.
该结构提供了一个集总声阻抗具有声波电阻与频率成正比，和声学惰性是与频率成反比。
The function relationship between acoustic intensity of eyelet leak noise frequency section and re was discussed.
探讨了小孔泄漏气体噪声频谱中某一频段声压级与雷诺数之间的函数关系。
This paper introduced the application of infrared ray, supersonic wave, high frequency, laser, radioisotope, microwave and acoustic emission technology to wood industry.
介绍了红外、超声、高频、激光、同位素、微波、声发射、计算机等近代技术在木材工业上的应用概况。
This paper introduced the application of infrared ray, supersonic wave, high frequency, laser, radioisotope, microwave and acoustic emission technology to wood industry.
介绍了红外、超声、高频、激光、同位素、微波、声发射、计算机等近代技术在木材工业上的应用概况。
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