主频率,main frequency
1)main frequency主频率
1.It is discovered that blasting vibrationmain frequency is low and blasting vibration duration is near to 3 s,so the blasting is safety in Heidaigou coal mine.通过对爆破地震频谱的分析,发现爆破振动主频率较低,爆破地震持续时间接近3 s,并指出黑岱沟露天煤矿在此条件下爆破是安全的。
2.The results show that themain frequency of the acoustic signal increases with the shape change of the ripple spring located under the slot wedge.研究表明在波纹板的弹性范围内,随着波纹板形变量的加大,测得的声信号能量谱图中主频率值逐渐增加。
3.： By fixing view point, the study is conducted to analyse the me ch anism of FFT(Fast Fourier Transformation) spectrum leakage when rectangular wa v e of single frequency composition is added, and the general rule of influence o fmain frequency upon leakage when its position is different in FFT spectrum.通过固定观察点而让主频率移动的方法，研究了单一频率成分的波形在加矩 形 窗函数时 FFT(Fast Fourier Transformation)谱泄漏的机理和主频率在 FFT谱上的不同 位 置对泄漏产生影响的一般规律，导出了计算幅值、频率和相位精确值的公式。
英文短句/例句
1.Motor task consisted of self-paced, repetitive simple movements of the upper limbs.运动任务采用自主频率的简单上肢运动。
2.Study on Estimation of Dominating Frequency of Non-Stationary and Long Memory Time Series;非平稳和长记忆时间序列主频率估计方法研究
3.Speech Feature Extraction Algorithm Based on Subband Dominant Frequency Information基于子带主频率信息的语音特征提取算法
4.The frequency response function includes an aerodynamic transfer function.频率的主函数包括主动力传递函数。
5.Mechanism of Biomechanic of Spectrum Main peak of Systolic Murmur;心脏收缩期杂音频谱主峰频率的生物力学机理
6.image frequency像频;镜频;镜频;镜像频率;镜像频率;帧频
7.frequency master control instrument for synchronous clocks or time switches频率主控仪表,用于同步时钟或时开关
8.The main effect is to raise the fundamental slosh mode frequency.主要作用是提高基本的晃动频率。
9.Broadband high power devices are main research object.宽频带高功率器件成为主要研究对象。
10.An oscillator for generating the carrier frequency of a transmitter.主控振荡器产生载波频率的振荡器
11.center frequency中心频率未调制频率
12.frequency theory of hearing听觉频率论 听觉频率论
13.Broadband high power devices become main research object.宽频带高功率器件成为主要的研究对象。
14.Discovery and Research on a Spontaneous Variation with High-frequency in Rice;一种高频率自主变异水稻的发现与研究
15.Characteristics of Switching Speed in YTO-Oscillator Generator以YTO为主振的信号源频率切换特性分析
16.Selection and Application of the Main Circuit and Device of High Power Converter大功率变频装置主电路及器件的选择与应用
17.Electromyography Mean Power Frequency Alternations during Rapid Transition of Elbow Flexion to Extension主动肌和拮抗肌功能转变瞬间的肌电平均功率频率变化
18.The power magnitude of main peak frequency of dynamic tapping torque can be used for on_line detecting the tap wear.提出了在频域内采用动态攻丝扭矩主要峰值频率的功率值实时检测丝锥磨损的方法。
相关短句/例句
dominating frequency主频率
1.The ultimatedominating frequency profiles not o.基于常规的主参数分析原理,从高精度时频分析的角度出发,采用广义S变换进行计算,提出了一种新的基于广义S变换的主频率分析方法。
2.Traditional spectral analytical methods are not fit for the spectral analysis or the estimation of thedominating frequency of such series.许多经济时间序列表现出非平稳性和长记忆性,对这样的序列进行谱分析并估计其主频率,采用传统的谱分析方法已不适用。
3)predominant frequency主频率
1.Ricker wavelet whosepredominant frequency is 200Hz was chosen as the exciting wave,and the character parameters(predominant amplitude,predominant frequency and frequency bandwidth) of its reflected wave were calculated.选择主频为200 Hz的雷克子波,理论计算原始地震反射波的特征参数(主振幅、主频率、频带宽度)。
4)Master frequency主频率
1.Research purposes: The master frequency of vibration is one of the issues being paid attention to by all researchers on the blasting seismic wave because it has the obvious effect on the building damage,so it has a practical significance to do study on the blasting seismic wave.研究目的:振动主频率是各国爆破地震波研究工作者最关注的问题之一,它对建筑物的破坏结果有明显的影响,对其进行深入研究具有非常重要的现实意义。
5)main lobe frequency主瓣频率
6)main vibration frequency主振频率
1.And by regressing analysis of practical test data,themain vibration frequency forecast formula under special condition is gained.根据爆破振动过程的复杂性,利用量纲分析法建立了爆破振动频率与主要影响因素之间的函数关系,并通过对实测数据进行回归分析,得到了特定爆破条件下主振频率的预测公式,为爆破振动频率衰减规律的研究和对类似爆破工程进行主频率预测提供了理论和实际依据。
延伸阅读
主频率数字电子计算机内部主要的时序信号源的频率。是决定一台计算机运算速度的重要参数。一台计算机的主频率是稳定不变的。通常主频率高的计算机，其运算速度也快。
