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。
Small, low impedance, the high pressure resistance electric capacity, mainly applies to the sound frequency dividing circuit.
小型，低阻抗，高耐压电容，主要应用于音响分频电路。
Extracting the sound frequency features is vital for the noise diagnosis expert system to detect the gear processing error in a transmission.
汽车变速器齿轮制造缺陷声频特征的提取，是汽车变速器噪声故障诊断专家系统准确诊断齿轮制造缺陷的关键。
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.
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。
Regular repeating actions such as sound waves, light waves, or radio waves have a certain frequency, or number of waves per second.
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。
The quicker it vibrates, the greater the frequency of sound it produces.
它振动得越快，发出的声音频率就越高。
Basically, the phenomenon of Standing Waves occurs when sound waves of the same frequency reflect off the walls and meet from opposite directions.
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。
A vibration that has a higher or lower frequency than a sound, he found, tends to skew pitch perception up or down.
频率超过或低于声音频率的震动会分别引起音高知觉的上调和下调。
It is the perfect shape for producing a brilliant, expressive and infinitely variable sound in the same frequency range as the human voice.
这种结构是十分完美的，它使得小提琴可以产生美妙的，富有表现力的，以及在人声的频率范围内无限多变的声音。
The number of vibrations an object makes while it's making a sound is called its frequency, which is measured in Hertz.
物体发声时振动的次数叫做频率，计量单位是赫兹。
The crystals work by manipulating phonons, or vibrational waves that can carry either sound or heat depending on the frequency.
这些晶体通过对声子进行操控来工作；声子是一种振动波，可以携带声音或热量，具体携带什么则取决于其频率的高低【 译者注：声子是晶体点阵振动能的量子 】。
They work by sending out pulses of high-frequency sound and then interpreting the reflections as images.To do all this, though, you need a device called a transducer.
它们的工作原理是通过发出高频声波脉冲并将反馈的信息转变成图像，为了实现这一过程，你还需要一个叫做变频器的设备。
They work by sending out pulses of high-frequency sound and then interpreting the reflections as images. To do all this, though, you need a device called a transducer.
它们的工作原理是通过发出高频声波脉冲并将反馈的信息转变成图像，为了实现这一过程，你还需要一个叫做变频器的设备。
At ground level, such vibrations-akin to low-frequency sound waves-are very small, only about the size of the vertical motions that produce them.
在地表，这种类似于低频声波的振动非常小，只相当于造成它们的垂直振动的幅度。
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。
The sonic signature needs to keep the treble detail, but increase the frequency spectrum and add a more full sound.
声音特色方面，要保持高音的细节，但增加频响宽度，增加更多的饱满的声音。
Auditory fusion frequency (AFF) of impulse sound and paired pitch in 80 workers exposed to noise and 60 non exposed ones were measured to study the relationship between AFF and auditory fatigue.
为探讨闪声融合频率与听觉疲劳的关系，测量了80名接触噪声工人和60名非接触噪声人员的脉冲声和双音调闪声融合频率。
Light waves differ in frequency just as sound waves do.
同声波一样，光波也有不同的频率。
Regularities of pressure on surface with sound pressure level and frequency are also given.
并给出了模型表面压力随声压级及频率变化的规律。
Based on wave acoustics, the low frequency sound field is analyzed in this paper, and reciprocity is verified both theoretically and experimentally.
文章根据波动声学的观点对房间内的低频段声场做分析，理论和实验都验证了这个结论。
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.
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。
The relation between sound velocity and syntonic frequency is gained by analyzing the ultrasound transmitting in thin material.
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。
This doesn't sound like dynamic frequency changes yet and in fact it isn't.
这听起来还不是动态频率改变，实际上它也不是。
This doesn't sound like dynamic frequency changes yet and in fact it isn't.
这听起来还不是动态频率改变，实际上它也不是。
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