The frequency scanning course comprises a frequency rough scanning course and a frequency fine scanning courses.
其中的频点扫描过程包括频率粗扫和细扫两个过程。
This paper describes the tests and applications of GPS-900-3 high frequency Fine vibro-screen in Miyun Iron Mine, the Capital Iron and Steel Company.
本文介绍GPS- 900 -3型高频振动细筛在首钢密云铁矿选厂的试验结果和应用情况。
A highly stabilized laser produces very fine teeth, enabling highly precise measurements of specific frequencies or changes in frequency.
高稳定的激光可以产生极细的齿，这样可以非常精确的测量特定的频率或频率变化。
A real optical frequency comb spans the entire visible spectrum of light, and has very fine, evenly spaced teeth.
实际光学频率梳横跨整个可见光谱，各齿极细并均匀分布。
This frequency depends on the fine-structure constant.
该频率取决于精细结构常数。
The results have been remarkable, and MD Anderson is moving on to live animal research in order to fine-tune the process of killing cancer cells through radio-frequency heating.
测试结果一直是可喜的，MD安德森医疗中心目前正进一步在活的动物上做研究实验以使射频加热杀死癌细胞的过程更精确无误。
After several weeks of boosting your stride frequency, add longer, pace-specific interval work to fine-tune your speed to meet your time goal.
经过几周时间，就能提高你的步频，再加上一些更长一些的配速间歇训练，就能让你的速度可以很好的达到你的目标。
The whole identification process is from coarse to fine and combines geometric features and frequency domain features.
整个识别过程由粗到细，融合了几何特征和频域特征。
In a drive system of power transistor inverter-motor, not only can it be used in fine control of motor current waveform, phase, amplitude and frequency, but can also be used to sense, fault current.
在大功率晶体管逆变器——电动机驱动系统中，它不但可用来对电动机电流的波形、相位、幅值和频率进行精细控制，而且能快速地检测出故障电流。
DDS is an advanced technique on frequency synthesis, whose primary advantages are controlling facility, continuous phase and fine frequency resolution.
DDS技术是一种先进的频率合成技术，其主要优点是易于程控，相位连续，输出频率稳定度高，分辨率高。
The result shows that average absorption coefficient and noise reduction coefficient separately equal to0.58and0.60 and fine property of sound absorption at middle-low frequency.
结果表明材料的平均吸声系数和降噪系数分别达0。58和0。60，且材料的中低频吸声性能优良。
Through the operation of confusion and slot number mapping, a frequency hopping sequence can be produced with fine uniformity and less-than-512 arbitrary slot number.
该方法通过混淆运算、频隙映射的方式产生出均匀性好、可用频隙数小于512的任意频隙跳频序列。
By means of this technique, the signal frequency can been controlled with facility, accuracy, continuous phase and fine frequency resolution.
利用这种技术可以方便的实现高精度、连续相位、高分辨率的频率控制。
Industrial high performance foams fine celled polyurethane foams cellular silicone foams liquid silicone rubber high frequency circuit materials flexible circuit materials.
工业用高性能泡绵、微细孔聚氨脂泡沫材料、多孔硅泡沫材料、液体硅橡胶、高频印刷线路板材料、柔性印刷线路板材料。
To maintain both the voltage and the frequency within limits requires fine power control and load regulation.
既要保持电压而在限制范围内的频率，需要良好的功率控制和负载调节。
Industrial high performance foams, fine celled polyurethane foams, cellular silicone foams, liquid silicone rubber, high frequency circuit materials, flexible circuit materials.
工业用高性能泡绵、细孔聚氨脂泡沫材料、孔硅泡沫材料、体硅橡胶、频印刷线路板材料、性印刷线路板材料。
The paper mainly put forward a new control method of stepping motor which character-, ized by equal-stepped fine division, and then design a constant frequency PWM driver circuit.
提出一种等步距角的细分控制方法，并据此设计了恒频脉宽调制细分电路。
Gaussian beam resonance system, which has very fine resonance to relic high-frequency gravitational waves (HFGWs) at the same frequency, opens a window for detection of relic HFGWs.
高斯束谐振系统对同频率的高频遗迹引力波具有很好的谐振性，这为高频遗迹引力波的探测开启了一个窗口。
Digital signal processing for analysing noise of motors has the advantages of high computing speed, fine frequency resolution and multiple functionality.
应用数字信号处理技术分析电机噪声具有分析速度快，频率分辨率高，功能丰富等特点。
The purpose of this project is to design a wide frequence band, fine frequency step, low phase noise and low spur synthesis sweeping source suited for the spectrum analyser.
本课题的目的是设计一个适用于该频谱分析仪的宽频率范围、精细频率步进、低相噪及低杂散的合成扫频源。
With optimum magnetic intensity and frequency, the weld microstructures were almost fine equiaxed grains and the weld shape was.
当磁感应强度和频率匹配合适时，焊缝成形良好，焊缝组织几乎为细小的等轴晶。
The application and effect of US Derrick overlapping high frequency vibrating fine screen in the transformation for capacity expansion of System 321 in Ekou Iron Concentrator are described.
介绍了美国德瑞克重叠式高频振动细筛在峨口铁矿选矿厂321系统扩能改造中的应用和效果。
In addition, an adjustable resistor is connected in series in the series loop of the sensing unit and the inclusive unit to realize the fine regulation to the power frequency impedance.
此外在所述感性单元和容性单元的串联回路中串入一可调电阻，实现对工作频率阻抗的精细调整。
This article introduces the work principle and application field of the Derrick high frequency vibrating fine screen simply.
简要介绍了德瑞克高频振动细筛的工作原理及其应用领域。
The virtual grating was computer generated, so the grating was very fine and the frequency was easily changed.
用软件在计算机上生成虚拟光栅，将两种频率的光栅合成为投影复合光栅进行测量。
In order to make the track loop into lock quickly, the paper USES FFT spectral analysis to get fine frequency.
为了让跟踪环路快速入锁，这里还采用了FFT谱分析法对频率进行精捕。
The good response relationship between time-frequency spectrum and geologic structural feature provides straightforward foundation for seismic-geologic fine interpretation.
时频谱与地质结构特征之间的良好响应关系为地震地质精细解释提供了直观的依据。
High frequency pulse current machining and fine finishing can improve parts' machining accuracy and surface quality.
高频脉冲电流加工及光整加工技术能提高零件的加工精度和表面质量。
Fine frequency resolution requires a small reference frequency and a correspondingly small loop bandwidth.
高的频率分辨率要求低的参考频率，这就相应地要求环路的带宽比较窄。
Fine frequency resolution requires a small reference frequency and a correspondingly small loop bandwidth.
高的频率分辨率要求低的参考频率，这就相应地要求环路的带宽比较窄。
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