查询词典 sound frequency

Numerical Simulation of Flow Field in Pulsating Fluidized Bed Under special entry conditions, the CFD is used to simulate the three-dimension fluidized bed with different oscillation intensity and frequency in order to research the effect of sound oscillation on flow field in the fluidized bed. The results indicate that the sound oscillation can make the distribution of the flow field more uniform and can promote the heat and mass transfer.

脉动流化床流场模拟在特定的入口条件下，应用计算流体力学技术对三维流化床在不同振动强度、不同频率扰动作用下的流场进行模拟，得到声波扰动对流化床流场分布的影响，结果表明声波振动可以使流化床内的流场分布更加均匀，促进热质传递。

The diffraction attenuation of infinite thin sound barriers to point sources are calculated,and the influences of Sound source and receiver positions,noise frequency and reflection from the ground are ana- lyzed.

数值模拟方法主要借助于计算机计算，不受实地条件的影响，因而能快速得出分析结果，为声屏障的设计提供参考依据，以便探讨和设计更多的高效声屏障形式。

In the speaker, it is possible to elevate degree of space utilization in the mobile communication terminal, to easily manufacture a mobile communication terminal which parallels the trend toward miniaturization, slimness and lightness, to improve the characteristics of low frequency sound, and thus to improve sound quality.

在所述扬声器中，可以提升移动通信终端中的空间利用程度，以容易地制造朝着小型化、纤细和轻巧趋势发展的移动通信终端，以改善低频率声音的特性，从而改善声音质量。

In the last few years, researches the problem of the underwater sail machine's sound have been common, the content of the research is very extensive, including the modeling, method of its solution, frequency curve, the wave's property in spreading, the syntonic frequency and the damp material on such coupling system.

近几年，水下航行器的声振一直是国际上研究的热点，研究的内容非常广泛，其中涉及这类耦合系统的建模、求解方法、频散曲线与传播波性质、外激励下的共振频谱及阻尼材料降噪等。

Researcher used computer sound fixing and ranging software to record sound to test the pitch with frequency spectrum and SPSS statistical applied software is used to analyze.

并透过电脑测音软体录制声音，以频谱分析测定音高，再用SPSS统计应用软体进行分析。

The frequency of spontaneous UP/DOWN transitions could be entrained to a regular interval by repetitive sound stimuli with intervals ranging 3-12 sec, in which each sound stimulus effectively induced a UP-to-DOWN transition.

外界声音刺激（白噪声，0.1-35 KHz）能调制神经元自发的高电、低电位期的传递节律：当声音刺激落在高电位期时，每一次声音刺激都会使细胞膜电位由高电位期向低电位期转变，并当声音刺激间隔在3-12秒范围内时，自发的高、低电位期的转变节律就同步于声音刺激的重复率，即跟随效应。

3 Seconds of the sound file. The spectrogram shows time on thex axis, frequency on the vertical axis, and sound level in

下方图案，在X轴上以时间为单位做标示，纵轴则代表频率，以decibel为单位的颜色则代表著音量

The frequency of a sound is the number of cycles per second of a sound wave.

所谓频率，就是一个声浪每秒种的周率，声音频率越高，音节就越高。

Very High Frequency/ Ultra High Frequency communication is good at mobility and flexibility, and it also appears with features of moderate transmitting power, reasonable equipment cost, very sound anti-destroying ability and great security.

短波/超短波通信不仅具有很好的机动性和灵活性，而且其发射功率小，设备简单，抗毁性强。

Is listening to Wang Fengnei the penetrating power singing sound, is appreciating the song video frequency, has integrated unrestrainedly to the Wang peak singing sound, sings loudly "Life which together Is in full bloom".

听着汪峰那穿透力歌声，欣赏着歌曲视频，已情不自禁地融入到汪峰的歌声里，一同高歌《怒放的生命》。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。