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1.
Frequency Control System of Slip-frequency phasor for AC Motor Speed control
交流变频调速的滑差频率矢量变频控制系统
2.
Study on Multiple Frequency CW Ranging Method Based Quadric Difference Frequency
基于二次差频的多频连续波测距方法研究
3.
All-optical Wavelength Conversion Based on the Cascaded Sun-and Difference Frequency Generation;
和频与差频级联型全光波长转换技术的研究
4.
error frequency fidelity criterion
差错频数逼真度准则
5.
sweep frequency heterodyne-type analyzer
扫描频率外差式分析器
6.
single conversion superheterodyne
一次变频超外差接收机
7.
double superheterodyne receiver
双变频超外差接收机
8.
dual-conversion superheterodyne receiver
双变频超外差式接收机
9.
triple superheterodyne
三次变频超外差接收机
10.
Stagger-tuned intermediate frequency amplifier
参差调谐中频放大器
11.
The Doppler frequency can be obtained as a heterodyne or beat effect.
由于外差或频差效应,能够得到多普勒频率。
12.
all solid state VHF and UHF TV transposer
全固态甚高频和特高频电视差转机
13.
Study of LD-Pumped 1064nm Dual-Frequency Nd: YAG Laser with Large Frequency-Difference;
LD泵浦1064nm大频差双频Nd:YAG激光技术研究
14.
The Loss Difference in Differential Laser Gyros
四频差动激光陀螺中差分损耗的探讨
15.
Fast algorithm for joint estimation of DTO and DFO
一种时差/频率差快速联合估计方法
16.
The difference, expressed in Hertz, between the two limiting frequencies of a band.
一个频带的上下界频率之差,单位用赫兹表示。
17.
THE INVERSION OF RAYLEIGH WAVE DISPERSION CURVE WHICH LOST FREQUENCY RANGE
对缺失频段的瑞雷波频散曲线反演的误差分析
18.
R. M. S.Value Error for Selective Voltmeter in Measuring FM Signal
选频电压表在测量调频信号时的有效值误差