... 人无线调频系统 Personal FM System 无线调频系统 FM SYSTEM 调频系统,调频制 frequency modulation system ...
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direct frequency modulation system 直接调频制
modified frequency modulation system 变换装置 ; 改进型调频制 ; 修改的调频系统
Armstrong frequency-modulation system 阿姆斯特朗调频系统
subcarrier frequency modulation system [电子] [通信] 副载波调频系统
pulse frequency modulation control system [自] 脉冲调频控制系统
microwavw frequency modulation system 微波调频系统
frequency shift modulation system 移频调制方式
frequency modulation transmitting system 调频发射系统
frequency modulation telecommunication system [通信] 调频通讯系统
Based on the introduction of components and principle of work of frequency modulation system of constant frequency AC power supply, math model of frequency modulation system is established.
在介绍某型恒频交流电源频率调节系统的组成和工作原理的基础上，建立频率调节系统的数学模型。
In the model communications system, the modulation process also is loaded the digital signal in the carrier scope value, the carrier frequency or on the carrier phase.
在典型的通信系统中，调制过程是数字信号加载在载波的幅度值、载波的频率或者载波的相位上。
This paper studied the three-phase PWM(pulse width modulation) rectifier in dual PWM variable frequency speed regulation system.
对双PWM变频调速系统中的三相PWM整流器及其控制方法进行了研究。
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