main frequency是什么意思

网络释义

用法例句

The dominant frequency, amplitude-attenuation and resolution of excited signal and reflected signal.;

激发信号与反射信号的主频、振幅衰减及分辨率

Yun Mei-hou has questioned about the argument of close relationship between resolution and S/N ratio expounded in my book "Road toward Precious Exploration" and considered that seismic resolution is only relative to dominant frequency and irrelative to S/N ratio of seismic waves.

云美厚曾对笔者专著《走向精确勘探的道路》一书中阐述关于分辨率与信噪比有密切关系的论点提出质疑,他认定地震分辨率只与地震波的主频有关,而与地震波的信噪比无关。

The issues of present seismic wavelet frequency caused by different concepts, such as apparent frequency, dominant frequency, peak frequency and centroid frequency, etc.

针对目前地震子波频率由于定义方式出现的各种概念(视频率、主频、峰值频率、中心频率等)以及理解上出现的偏差等问题,首先从时间域定义和频率域定义2个方面进行了归纳和总结, 并在此基础上对3种常用地震子波(Ricker子波,Zinc子波,正弦指数衰减子波)进行了分析和研究,得出视频率与主频概念一致,但不同地震子波的峰值频率、中心频率和视频率(或主频)之间并不完全一致的结论;而对于实际地震资料,将峰值频率近似看作地震子波的主频是可以的,但在地震子波已知的情形下这样做是不恰当的,甚至可能会得出错误的结论和认识。

At the same time, the changes of main frequency, frequency band and quality factor with the variations of gas saturation are analyzed.

用实验方法探讨了气驱水过程中低孔隙度低渗透率砂岩的纵横波速度、纵横波速比、弹性模量等参数随不同含气饱和度的变化 ;同时在频率域内探讨了纵横波的主频、带宽、品质因素Q随不同含气饱和度的变化。

This paper describes the variation of wave velocity,amplitude of the intitial wave and main frequency when ultrasonic pulses transfers through fresh cement paste,and analyses the relation between the variation and the development of the structure of fresh cement paste.

论述了超声波在新拌水泥浆体中传播时波速、首波幅值、主频的变化 ,并分析了这些变化与新拌水泥浆体结构发展之间的关系。

There are also no remarkable differences in main frequency and main frequency absolute power.

比较飞碟多向运动员重大比赛前后安静状态下的脑电绝对功率值,结果发现:运动员赛前与赛后各脑区δ频段、θ频段、α频段、β频段的绝对功率及各脑区主频和主频绝对功率无显著性差异。

It is discovered that blasting vibration main 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。

The results show that the main 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。

： 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 f main 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。

Host and guests frequently raised their glasses during the feast.

席间宾主频频举杯。

News broadcasts are mainly given by Radio 4.

新闻主要由频道4播出。

Radio 1 is mainly pop music.

频道1以流行音乐为主，

Mill spindle is used by either inverter or servo motor.

铣床主轴采用变频马达或伺服主轴。

The frequency response function includes an aerodynamic transfer function.

频率的主函数包括主动力传递函数。

Host videos, audio, images, and more on the web.

可以在线主持你的视频、音频、图片以及更多。

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

The investigation of relations between low-frequency noise subjective sensation and spectrum characteristics

低频噪声主观感知与频谱特征关系研究

Sending Movie to Video Hosting Provider

正在将电影发送至视频宿主提供商

The main machine that adopts frequency converter to regulate the speed.

主机调速采用进口变频调速器调速。

Resize main window when video is zoomed too large

当视频缩放过大时调整主窗口大小

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

The video hosting provider has not accepted your movie.

视频宿主提供商未接受您的电影。

CCTV Golf& Tennis Channel will broadcast the major PGA Tour events.

网球频道将直播最主要的美巡赛赛事。

transistor PWM converter for AC main spindle drive

交流主轴驱动晶体管脉宽调制变频器

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。

Broadband high power devices are main research object.

宽频带高功率器件成为主要研究对象。

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