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- velocity modulated amplifier 速调放大器
- The operational principle of a velocity modulated hydraulic coupler and its application mechanism in a belt conveyor are introduced. 摘要介绍了调速型液力偶合器的工作原理，及调速型液力偶合器在带式输送机中的应用机理。
- This article expatiates the advantage of velocity modulated hydraulic coupler used in the design of high capacity with long distance belt conveyor by analysis of working principle and application of it in belt conveyor. 摘要通过对调速型液力偶合器的工作原理的分析研究，结合在带式输送机中的实际应用效果，表明调速型液力偶合器在各种性能中完全满足工作需要，在大运量、长运距带式输送机设计中使用调速型液力偶合器具有性能好、成本低等优点。
- An electron tube used to amplify or generate ultrahigh frequency by means of velocity modulation. 速调管一种用速度调节的方法放大或产生超高频率的电子管
- velocity modulated electron beam 速调电子束, 速调电子注
- velocity modulated hydraulic coupler 调速型液力偶合器
- The research is based on the structure and principle analysis of digital direct current velocity modulation system of the mine hoister. 本课题通过对矿井提升机全数字直流调速系统的结构和原理分析，结合模糊控制理论的基础上。
- The electrical machinery velocity modulation control procedure, you may establish the parameter through this procedure, was allowed to control the speed through the feedback! 电机调速的控制程序,你可以通过这个程序来设定参数,通过反馈就可以控制速度了啊!
- Power amplifier module amplifiers the sweep signal, driving the vibroseis push-and-pull the ground and forming elastic waves. 该电路采用准互补对称推挽电路，构成甲乙类放大，引入了多级反馈保证整个信号通道能非常稳定可靠地工作，并充分考虑了散热问题和保护电路的设计。
- The automatic control system of Assel mill involves the programmable controller,the direct current velocity modulation system,position controller,and the electronic cam. Assel轧管机的自动控制系统涉及可编程控制器,直流调速系统,辅机控制等。
- Must realize the direct current machine velocity modulation first to transform the alternating current into the cocurrent, this needs the leveling circuit. 要实现直流电机调速首先要把交流电转换为直流，这就需要整流电路。
- Through simulation on velocity modulation system of water wheel generator,indicated control effect of this control mode surpassed the conventional PID control. 通过对水轮机调速系统进行仿真,表明了该控制方式控制效果优于常规PID控制。
- Uses the advanced frequency conversion speeder to carry on the electrical machinery velocity modulation, the ease of operation, the rotational speed may move, safe and accurate. 采用先进的变频调速装置进行电机调速,操作方便,转速可调,安全准确。
- modulating amplifier by variable reactance 变抗调制放大器,可变电抗调制放大器
- I bought an amplifier yesterday. 我昨天买了一个扩音器。
- self-exciting modulating amplifier 自激式调制放大器
- PWM pulse width modulation amplifier 巴特沃思低通滤波器
- pulse width modulation amplifier 脉宽调制放大器
- modulating amplifier by variable reactan 可变电抗调制放大器
- Abstract: This paper introduces the application of change-frequency velocity modulator in the mine fan,analyzes and compares energy charge before transformation with after.Change-frequency velocity modulator has notable saving electric energy effect. 文摘:介绍了变频调速器在通风机改造中的应用，对改造前后的能耗进行分析比较，具有显著的节电效果。
