1.
The Research and Application of Dual Frequency Signal Generator;
程控双频调相信号发生器的研制及应用
2.
FM broadcasting--Dual programmes
GB4311.4-1987调频广播双节目
3.
speech plus duplex FMFV telegraph equipment
语音加双工调频音频电报设备
4.
Dual Wavelength and Dual Pulse Q-switched Frequency Doubling of Tunable Cr:LiSAF Laser
双波长双巨脉冲调Q倍频Cr:LiSAF激光器
5.
Study on Dual-PWM Vector Control Variable-Frequency System;
双PWM矢量控制变频调速系统的研究
6.
The Study of Dual-PWM Variable Frequency Speed Regulation System Based on DSP Control Technology;
基于DSP的双PWM变频调速系统研究
7.
Study on High Power Factor Dual-PWM Variable-Frequency System;
高功率因数双PWM变频调速系统的研究
8.
The Study on Dual-PWM Induction Motor Variable Frequency Drive System;
双PWM型感应电机变频调速系统研究
9.
Simulation of Double-hysteresis Width Frequency Control System by MATLAB Simulink;
双滞宽变频调速系统的SIMULINK仿真
10.
Design of AC Drive System Based on Dual-PWM
基于双PWM技术的变频调速系统的设计
11.
Research on Mine Hoists of Dual PWM Three-level Variable Frequency Adjustable Speed System
一种新型双PWM三电平变频调速系统
12.
The Research and Design of Three Phase Double PWM Variable-frequency Power Source;
三相双PWM变频电源的研究与设计
13.
Three-phase Bi-directional Voltage-source High Frequency Link Inverter;
三相双向电压型高频链逆变器的研究
14.
Exploration of the Relevant Technological Index of Two-way Video Instruction System;
双向视频教学系统相关技术指标探讨
15.
Kosterlitz-Thouless transition in One-dimensional double-frequency Boson System;
一维双频玻色系统的Kosterlitz-Thouless相变研究
16.
Design of Exclusive Phase center Dual band GPS Antenna
相位中心确定双频GPS天线的研制
17.
A High Speed Divide-by-14/16 Dual-Modulus Phase Switching Prescaler
一种高速14/16双模相位开关预分频器
18.
The Balanced Dual-mixer Heterodyne for Measurement of Phase Difference between two Coherent Lights;
对称双混频外差法测量相干光的相位差