frequency spectrum是什么意思

网络释义

用法例句

Caved coal and rock spectrum on longwall face;

综采工作面煤矸频谱特征

Correlations between spectrum characteristics of DRC and nugget size in resistance stainless steel spot welding;

不锈钢点焊动态电阻曲线频谱与熔核的关系

Study on Spectrum Characteristics of Blasting Vibration Wave;

爆破地震波的频谱特性研究

Study on frequency spectrum characteristics of acoustic emission in coal or rock deformation and fracture;

煤体破裂声发射的频谱特征研究

Frequency Spectrum Characteristics of Loran-CPPM Coding Communication;

罗兰-CPPM编码通信的频谱特性研究

On the character of frequency spectrum for an underground engineering wall rock;

某地下工程围岩的声波频谱特性

Bio-impedance spectra measurement and systematic research on electrical impedance tomography;

生物组织复电阻抗频谱测量及电阻抗断层成像系统的研究

Resolution study of the second-order group dispersion effects on the spectra of super-Gaussian pulses;

二阶群色散对超高斯脉冲频谱影响的解析研究

Influence of Initial Chirp on the Evolution of Spectra;

初始啁啾对脉冲频谱演变的影响

In each OPs waveform, the frequency spectra from 10 to 290 Hz were derived by Fast Fourier Transform (FFT).

用快速傅里叶变换计算 OPs的 10～ 2 90 Hz频谱 ,计算频谱的功率总和以及最大功率。

A par-ticular method using frequency spectral analysis and fuzzy mode identification is introduced, And the deeply studied direction is indicated.

本文提出对电气设备噪声进行在线监测和实时故障诊断的概念和研究的必要性，综述了电气设备噪声分析和故障诊断的方法，结合实例介绍了利用噪声频谱分析和模式识别方法进行故障诊断的方案，并指出了深入研究的方向。

with impulse frequency spectra method may test bearings on-line and predict break-downs.

使用冲击脉冲频谱方法,可以在运行中准确完成轴承的检测工作,还可以预报设备故障。

Doppler Features of Central Retinal Artery and Vein: An Observation of Frequency Shift Spectrum in HealthyAdults;

正常成年人眼视网膜动静脉多普勒频谱形态观察

Based on microlocal analysis,the propagation of singularities of semilinear thermoelastic materials with microstretch was studied by using the diagnolization of frequency analysis,and the finite propagation speed of singularities of solutions to Cauchy problem of the model was proved.

基于微局部观点,利用频谱分析对角化的方法,讨论了一维半线性微伸缩热弹性力学材料的奇性传播问题,证明了该模型柯西问题解的奇性传播具有有限的传播速度。

spectral density

谱线[频谱，光谱]密度

swept IF type spectrum analyzer

扫中频式频谱分析仪

Spectral Sculpting of OFDM Signal for Opportunistic Spectrum Access

OFDM机会频谱接入的信号频谱成型方法

Research on Dynamic Spectrum Management Based on Multi-dimension Spectrum Space

多维频谱空间下的动态频谱管理研究

Frequency spectrum element, carrier frequency. Frequency type can be specified.

频谱元件，载波频率。可指定频率类型。

octave and third octave spectrogram

倍频程及1/3倍频程频谱图

The standard spectrum of whispered Chinese speech

GB/T7348-1987耳语标准频谱

zero-field paramagnetic resonance spectrometer

零场顺磁共振频谱仪

micro wave all-pictrue frequency spectrum analyzer

微波全景频谱分析仪

microwave pulse spectrum analyzer

微波脉冲频谱分析仪

three-dimensional dynamic spectrum analyser

三维动态频谱分析仪

solar radio dynamic spectrograph

太阳射电动态频谱仪

The standard spectrum of Chinese speech

GB/T7347-1987汉语标准频谱

swept front end type spectrum analyzer

扫前端式频谱分析仪

high resolution low frequency spectrum analyzer

高分辨率低频谱分析仪

real-time digital spectral analyzer

实时数字频谱分析仪

real-time digital spectrum analyzer

实时数字频谱分析器

real-time all-digital spectrum analyzer

实时全数字频谱分析仪