该词条未找到_海词词典

您要查找的是不是：

The frequency associated with the first mode is sometimes called the fundamental frequency. 和第一振模相联系的频率有时叫做基频。
The extinguish of arc of single-phase grounding fault is analyzed with high frequency theory and fundamental frequency theory. 本文分析了小电流接地系统弧光接地过电压的基本原理及高频熄弧理论和工频熄弧理论。
Conclusion The results suggested the hypertrophic ventricular fold disturbed the phonation,making the fundamental frequency lower. 结论肥厚的室带可能参与发音，使基频和低音降低。
Passing the square wave through a narrow bandpass filter centered on the square wave's fundamental frequency removes most of the harmonics. 通过一个中心位于方波基频的窄带带通滤波器，方波可以去除绝大多数谐波。
Use the Frequency Spectrum (FFT) display to measure the approximate value of the fundamental frequency of the wire on the Sonometer. 使用频谱（FFT）显示测量振动频率计上金属丝基频的近似值。
At present,its main parameters are fundamental frequency,amplitude of vibration,perturbation(Jitter,Shimmer),noise spectrum(HNR,SNR,NNE),et al. 目前应用的主要参数有基频、振幅、微扰值(频率微扰、振幅微扰)、噪声谱(谐噪比、信噪比、标准化噪声能量)等。
Trumpeters alter fundamental frequency by modifying the lip tension and by pressing the valves to change the effective length of the tubes. 小号手可以藉由改变双唇的张力来增减基频，按下与放开活门则可以改变有效管长。
First,it is required that the calculation of RMS of fundamental frequency component is not only accurate,but also real time. 针对电能质量指标中电压波动和闪变的计算问题,提出了一种基波有效值的快速算法。
The fundamental frequency and bass were lower in diseased group. The percentage of jitter increased and the percentage of fundamental frequency decreased with severity. 试验组的基频和低音明显降低 ,随室带肥厚程度的加重 ,微扰百分值的检出率有增高的倾向 ,而基频和低音频率则有下降的倾向。
Results The fundamental frequency and bass were lower in diseased group. The percentage of jitter increased and the percentage of fundamental frequency decreased with severity. 结果试验组的基频和低音明显降低,随室带肥厚程度的加重,微扰百分值的检出率有增高的倾向,而基频和低音频率则有下降的倾向。
The percentage of jitter increased and the percentage of fundamental frequency decreased with severity.Conclusion The results suggested the hypertrophic ventricular ... 结果试验组的基频和低音明显降低,随室带肥厚程度的加重,微扰百分值的检出率有增高的倾向,而基频和低音频率则有下降的倾向。
First, a few improvements are made to the original model, e.g. the determination of MVF value and the estimation of fundamental frequency and harmonic parameter values. 我们首先改进了原本模型的分析步骤的缺点，如MVF值的决定及基频和谐波参数值的估计；
The fundamental frequency F0 and formant frequencies F1,F2,F3 are increased as increasing of the SPL of speech. 元音的基频F_O和共振峰,特别是F_1、F_2,随总声级的提高而提高,在相同坐标下所绘元音三角图平移并加大;
Under the same experimental conditions, We used plane-plane cavity and V-shaped folded cavity to compare the fundamental frequency and intra-cavity frequency-doubled characteristics of Nd:GdYVO4 and Nd:YVO4, respectively. 在相同的实验条件下,分别采用平平直腔和V型折叠腔对比了Nd:GdYVO4和Nd:YVO4两种晶体的基频和腔内倍频特性。
Using Mallat algorithm on the basis of wavelet transform and multiresolution analysis(MRA) in connection with traditional FFT,a new speech signal fundamental frequency detection method is presented. 将基于小波变换与多分辨分析 (MRA)下的Mallat算法与传统的快速傅立叶变换(FFT)相结合 ,提出了一种新的语音信号的基音频率检测方法。
The experimental results indicate that fundamental frequency component is dominant in seismic acceleration response spectrum. The second, third and fourth frequency components appear in the kind of frequency bands. 试验数据表明,地震加速度响应谱上基频分量占优势,第二、第三和第四阶频率分量以频带形式出现。
Methods Fundamental Frequency(F 0),Formant,shimmer,jitter,acoustic time-territory waveform and diagram among 26 tracheooesophageal and 32 normal speakers were examined by using USSA and the difference between the two groups were analyzed. 方法应用通用信号频谱分析系统 (USSA)对2 6例气管食管音及 32例正常语音的基频、共振峰、微扰、时域波形及语图进行分析。
C 3-Mode TM is the most advanced ultrasound contrast imaging technology by mow. It uses not only ultrasound signals of the harmonics frequency,but also the half of fundamental frequency and the fundamental frequency. C3 -ModeTM技术是目前最先进的造影剂成像技术 ,它不仅提取了造影剂二次谐波信息 (2fo) ,还同时提取了次谐波 1/ 2fo和基波fo频段的回波信号。
They generate a fundamental frequency by rapidly oscillating as they contact each other, separate and come in contact again.The glottis (the space between the folds) opens and closes. 声带的快速振动（两片反覆接触与分开）会产生基音，声门（glottis，两条声带之间的空间）则跟著合合开开。
His fundamental concern was for her welfare. 他最关心的是她的幸福。