当声波频率增加时，多孔铝合金的吸声系数增大。
When sound frequency increases, the sound absorbent coefficient of porous aluminum alloy increases.
当声波频率增加时，多孔铝合金的吸声系数增大。
It was found that the porous aluminum alloy has peat sound absorbent coefficient.
4d扫描的声波频率和普通超声波技术使用的相同。
4d scans use the same frequency of sound waves as in a normal ultrasound.
好在这些声音是超声波频率，所以我们听不到这些声音。
The good news is that because this call has an ultrasonic frequency, we are unable to hear it.
气泡尺寸和鼓泡频率随声压的增大而减小，随声波频率的增大先减小后增大。
The minimum fluidization velocity has a minimum value when the frequency of sound waves approached 150 Hz, whereas it decreased as the sound pressure level was increased at the same sound frequency.
随着声波频率的升高，空化气泡的初始半径取值区间越来越小，空化振荡也越来越弱。
With the increase of driving frequency, the initial radii range of cavitation bubbles decrease, and the oscillation intensity reduces.
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。
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.
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。
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.
国外在这方面有较系统的研究，并提出了一种预测零频到超声波频率之间全部速度频散的分析技术。
It has been researched systematically on abroad, and an analysis technology was put forward to predict all the velocity's dispersive of frequency from zero to ultrasonic frequency.
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。
Mode conversion efficiency has been calculated as functions of acoustic frequency, interaction length, guiding layer thickness, and acoustic drive power density.
利用耦合模理论分析了在双锥光纤耦合区中声光的相互作用，讨论了在不同耦合区半径下扰动周期与声波频率的关系。
The acoustooptic interaction in biconical optical fiber was analyzed based on coupled mode theory, and the relationship between perturbation period and flexural wave frequency was discussed.
从声波干涉的基本原理出发，通过数字延时线的简化分析，说明了多级台阶反射声的叠加对声波频率产生的梳状滤波效果。
Based on principals of interference of acoustic waves and simplified digital delay-line, comb filter effect induced by superposition of reflections from steps is presented.
结果表明，与圆形、方形活塞的辐射远场相比，在声波频率、活塞面积相同条件下，六边形活塞声源的辐射远场相对比较均匀。
Through comparison, it shows that at the same value of frequency and size, the far field of hexagonal piston is more uniform than that of circular piston.
你听不到这么高频率的声波。
有规律的重复活动如声波、光波、无线电波都有一个特定的频率，或者说是每秒的波动次数。
Regular repeating actions such as sound waves, light waves, or radio waves have a certain frequency, or number of waves per second.
基本上，当相同频率的声波从墙壁上反射并从相反方向相遇，就会出现驻波现象。
Basically, the phenomenon of Standing Waves occurs when sound waves of the same frequency reflect off the walls and meet from opposite directions.
通过使用定向声波天线和高频网络波形(HNW)，无线电可以采用单一频率自动创建整个网络。
Using a directive beam antenna and the Highband Networking Waveform (HNW), the radio can automatically create the entire network using a single frequency.
“高频率声波使得声音束很集中，周期很短。”他说。
"The high frequencies make the bats' sonar beam very focused and short-ranged, " he said.
换能器由阵列微压电结构组成，这种压电材料在合适频率下的振动能够将电信号转换成超声波。
Transducers are made from arrays of tiny piezoelectric structures that convert electrical signals into ultrasound waves by vibrating at an appropriate frequency.
托雷斯 -桑切斯，与斯特拉斯克莱德大学的同事一起，正在试验当聚合物开始冒泡的时候，用低频率的超声波照射来“激发”熔融聚合物。
Torres-Sanchez, along with colleagues at Strathclyde University, is experimenting with low-frequency ultrasonic irradiation to ‘excite’ molten polymers as they begin to foam.
在那里光的指示过去的一种方法透过一颗晶片被使用高的频率声波改变。
A method where the direction of light passing through a crystal is changed using a high frequency sound wave.
同声波一样，光波也有不同的频率。
声波就和光波一样，是以频率、波长和传播速度为其特征。
Like light waves, acoustic (sound) waves are characterized by a frequency, wavelength and propagation speed.
声波的频率就是感觉的音调，是单位时间通过定点的压缩数目。
The frequency of a sound wave, perceived as pitch, is the number of compressions that pass a fixed point per unit time.
对薄型材料中超声波传播规律进行分析，得到材料声速与共振频率的关系。
The relation between sound velocity and syntonic frequency is gained by analyzing the ultrasound transmitting in thin material.
介绍了一种声波法测冲击器频率的方法。
The paper introduces a kind of sonic method by which frequency of impacter is measured.
传统的超声应用高频率声波创建持续于人体中的图像，而弹性超声通过精确测量移动更进一步。
While traditional ultrasound uses high-frequency sound waves to create a picture of what is going on it the body, elastrography goes a step further by gauging movement.
短促声波开始短促声波从起动频率对结束频率播放。
Chirp up the chirp is played from start frequency to the end frequency.
短促声波开始短促声波从起动频率对结束频率播放。
Chirp up the chirp is played from start frequency to the end frequency.
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