Illegal range for horizontal sync frequency. 水平同步频率范围不合法。
Typically caused by distortions to the frequency components below the horizontal line frequency. 它沿水平方向逐步扩展,通常是由低于行频的频率畸变造成的。
The influence of current leakage from horizontal electric dipole on frequency electromagnetic sounding data was studied in this paper. 研究了频率域电磁测深中水平电偶源漏电对观测数据的影响。
This paper, based on wavelet decomposition technology, extracts fractal dimension of the alloy Zr-4 low-cycle fatigue fracture ( Zircaloy-4) in the low frequency, horizontal high frequency, vertical high frequency and the diagonal high frequency directions by means of covering blankets. 应用小波分解技术,用双毯法提取了锆-4合金低周疲劳断口在低频、水平高频、垂直高频、对角高频方向上的分形维数。
But extra synchronous generator which provides horizontal and vertical synchronous signal causes biased frequency so that the software process is unable to accomplish. 但通常采用外同步发生器提供的行、场同步信号频率点容易漂移,使后期软件处理无法进行。
A direct algorithm for full-wave apparent resistivity from horizontal electric dipole frequency soundings 水平电偶源频率域电磁测深全区视电阻率的直接算法
The system use one sensor solved the examination problem of horizontal amplitude, horizontal frequency, vertical amplitude, vertical frequency and dynamic flexibility. 该系统利用一个传感器解决了横向振频、横向振幅、纵向振频、纵向振幅和动挠度五个参数的检测问题。
Influence of horizontal continuous casting working frequency on surface quality of casting blank 水平连铸拉坯频率对铸坯表面质量影响的研究
An approximate method for the dynamic analysis of a moored cylindrical offshore platform and for the design of the catenary Anchor Leg Mooring ( CALM) system is proposed, the horizontal mean steady forces, the high frequency and low frequency oscillations are taken into account. 本文针对具有悬链线锚链系统的海上圆筒形浮式平台,供了考虑平均恒定水平力、高频振荡和低频振荡的近似分析方法和锚系的设计方法。
The present paper deals with the definition and algorithm of impedance real part equivalent resistivity in horizontal electric double source frequency electromagnetic sounding. 本文讨论了水平电偶源频率电磁测深中阻抗实部等效电阻率的具体定义和算法。
And on the horizontal direction, stiffness is weak, natural frequency of vibration is consistent with master frequency of stream fluctuating load, vibration stress is stronger. 水平方向刚度小,自振频率与水流脉动载荷主频率一致,振动应力较大。
Conclusions NTHI overestimates mitral valve leaflets thickness with a more exaggerated increase, especially in the horizontal axis, with the lower transmitting frequency and in the unimproved group. 结论NTHI增大了瓣膜厚度测量值,且在水平轴方向、低频发射及图像质量未改善组更明显。
Starting from focal mechanism and rock mechanics, it is considered that lilt disturbance is intrinsically micro-rupture and stick-slip phenomena and effective precursors, which were recorded by horizontal tilt meters different to seismograph with inherent frequency. 从震源机制,岩石力学角度出发,认为倾斜扰动其本质就是微破裂、粘滑现象,是大震前有效的前兆,这些震兆信息被不同于地震仪固有频率特性的水平摆倾斜仪记录到。
Also the method that can control horizontal vibration frequency is advanced. 在此基础上,提出水平自振频率的控制方法。
A new type horizontal vibration table for measuring the geophone spurious frequency the analyse of spurious level of DDS 一种测量地震检波器假频的新型水平振动台DDS谐波和杂散分析
A new method to define the Full-zone resistivity in horizontal electric dipole frequency soundings on a layered earth 水平电偶源频率测深中全区视电阻率定义的新方法
This paper analyses an interesting filtering phenomenon in the Abbe-Porter experiment by using the Fourier transform of δ function. The perpendicular construction of the object is obtained on the image plane by horizontal narrow crack in the frequency spectrum plane; 运用δ函数的傅里叶变换,分析了阿贝-波特实验中一个令人感兴趣的滤波现象:在频谱面上放入水平狭缝,在像面上得到物的竖直结构;
Drawing Roller Speed Program Control of Horizontal Continuous Casting Machine Based on Frequency Converter 用变频器实现水平连铸机拉坯辊速度程序控制
A new method to calculate horizontal magnetic elements in the electromagnetic sounding of frequency domain 频率域电磁测深中磁场水平分量新的计算方法
Combined Melting and Holding Furnace for Horizontal Casting of Copper Frequency Selection of Medium Frequency Melting and Holding Furnace and Power Calculation 卧式连铸铜锭坯连接式分体炉中频感应熔炼炉与保温炉的电源频率选择及功率计算
To realize this, drawing roller speed program control of horizontal continuous casting machine based on frequency converter, the signal generator provides program signal to frequency converter. 采用变频器实现水平连铸机拉坯辊速度程序控制,由信号发生装置给变频器提供程控信号。
First of all, dynamic characteristics of a horizontal milling machine has been analyzed in frequency domain by means of modal analysis methodology. 首先用模态分析方法,在频域内分析了卧式铣床动态特性。
The results shown that the vibration type of frictional force is quasi-harmonic self-excited vibration in vacuum, it is not related to normal load and pulling velocity, and its vibration frequency in horizontal direction is approximate to the natural frequency of the sample system. 结果表明,真空中摩擦力振动的类型呈准谐波周期性自持振动,其与正压力及拖动速度无关,振动频率接近于系统在水平方向上的固有频率;
The horizontal resonance frequency of digital seismic geophone is defined as spurious frequency. 我们把地震检波器的横向共振频率定义为检波器假频。
When the number of lateral brace are small, its populations, which could evidently improve the first-order horizontal the fundamental frequency of the structure, but number shoulds not be too big. 布撑数目小时,其数目增多,可明显提高结构一阶面外基频,但数目不宜过大。
It can provide hysteretic damping, vertical stiffness and horizontal flexibility, which can reduce the vibration frequency of beam, prolong the natural period and increase the damping of structure to achieve the seismic isolation. 它能提供滞回阻尼,竖向刚度、水平柔性,从而可以降低梁体自振频率、延长周期、增大结构阻尼以达到减隔震目的。
The primary frequency of the structure is far away from the primary frequency of the seismic wave, the horizontal seismic response is low frequency vibration, and the response is rather little. 结构主频远离地震波的主频,该塔台的水平地震为低频振动,结构地震反应较小。