Speech is made up of sound waves that vary in frequency and intensity.
语音是由不同频率和强度的声波组成的。
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Sound waves, light waves, and radio waves have a certain frequency, or number of waves per second.
声波、光波或无线电波等都有特定的频率，或者说是每秒的波数。
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As you walk faster, you will find the arms bend naturally and more quickly.
走快时，你会发现手臂会自然弯曲，而且频率会更快。
《柯林斯高阶英汉双解学习词典》
Amplifier self-oscillates at a frequency depending on the velocity of the fluid.
放大器自激振荡的频率就取决于流体的速度.
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This relation between the frequency and the field spectra was noted experimentally.
实验上已经发现频率和场频谱之间的这种关系.
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The other circuit is designed to resonate close to the desired frequency.
把另一线圈设计成在所有要求的频率范围内可与之谐振.
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Experimenters have succeeded in controlling the rate and regularity of the heartbeat.
实验者已经成功控制了心跳的速度和频率。
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通过构造李雅普诺夫泛函，给出了模型正平衡点全局稳定性的充分条件。（2）在角频率相同的条件下，对一类时间延迟耦合振荡器模型进行了研究。
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The inherent frequency of key parts-guiding mechanism is measured out as well.
并测出超临速自磨机的关键部件 — 导向机构的固有频率.
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不同训练频率对最大吸氧量和左室功能及亚极量运动能力的影响
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振荡器模块提供系统时钟信号，并能实现三种工作模式：固定频率模式、外部时钟同步模式和突发模式。
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