For welding thicker pieces, automatic frequency control should be adopted.
对于较厚的焊件，应进行频率自动控制。
In order to make the RF source and the waveguide have the same resonant frequency, the automatic frequency control (AFC) system is used.
为了使得射频源和波导管的频率保持一致，采用了自动频率控制系统(afc)。
Methods of analyzing the dynamic performance of automatic control system can include time domain analysis, frequency domain analysis and stability.
自动控制系统的动态性能的分析方法包括时域分析法，频域分析法，及稳定性判据。
The phase- locked loop is one kind of control system which is able to achieve phase automatic lock, to compose frequency and to trace demodulation system.
锁相环路是一种能实现相位自动锁定的控制系统，主要用于频率合成及跟踪解调系统。
In order to guarantee the curative effect, it is a must to introduce the temperature measuring technology, automatic control technology and choose appropriate microwave working frequency.
为了保证疗效，在微波治疗技术中还必须引入测温技术、自动控制技术并选择合适的微波工作频率。
The phase-locked system is a closed loop automatic control system that can follow the frequency and phase of the input signals.
锁相系统是一个能够跟踪输入信号频率和相位的闭环自动控制系统。
Automatic generation control (AGC) is one of the important measures to regulate the frequency and active power of power grid and ensure its security and economic operation.
自动发电控制(agc)是调整电网频率与有功功率、保证电网安全、经济运行的重要措施之一。
A set of automatic control instrument of frequency and load with high reliability and convenient regulation has been produced, test of which shows theoretic analysis's correctness.
研制了一套可靠性高、调节方便的舰船电站自动频载控制装置。试验证明了理论分析的正确性。
Frequency control Technology, which can be used as automatic air exchanging and conditioning system in flower cultivation greenhouse, has high reliability and excellent control performance.
变频调速技术以其高可靠性及优良的控制性能，可以作为自动换气调温系统应用在花卉培育温室大棚中。
A widely used method for the dynamic adjustment of automatic control systems is the frequency method.
用频率法对一个自动控制系统进行动态校正是工程中最常用的方法之一。
The automatic production system is computerized by the central computer and frequency modulation and motor speed change are made by front-end control CARDS.
基于计算机控制的楞纸板自动生产系统，以主控计算机为自动控制核心，通过前端控制卡，实现了对变频器进行调节，和对电动机调速。
The automatic control of frequency converter in dryer system are pointed out.
突出了变频器在干燥系统中的自动控制。
It shows that frequency conversion technology is in good foreground on energy saving and improving the level of automatic control.
实例证明，该变频技术在节能降耗、提高自动化控制水平方面具有很好的应用前景。
Control of microcomputer, frequency control of motor speed, touching panel, programmable operation with RCF automatic computing and setting, adjustable rise-and-fall speed from grade 0 to 9.
微机控制、变频调速、触摸面板、可编程操作、具有RCF自动计算与设定、0至9档升降速可调。
An application case in a fired power plant shows that with frequency conversion timing and automatic control techniques, the significant energy saving has been realized.
火电厂中央空调的应用实例证明了通过变频调速和自动控制技术，提高设备的节能水平是显而易见的。
Automatic constant pressure control of system has completed by press-sensor, PLC, frequency converter etc.
系统通过压力传感器、PLC、变频器等设备完成供水系统自动恒压控制。
Hongwei thermal power plant realized the ash pulp pump's automatic control with PLC and the frequency conversion, obtained the remarkable economic efficiency.
宏伟热电厂采用PLC和变频器实现灰渣泵的自动控制，取得了显著的经济效益。
The relatively complete theory of frequency method and root locus method for the design of automatic control system was set up through the efforts of numerous scholars after world war II.
二次大战以后，经过众多学者的努力，形成了较为完整的自动控制系统设计的频率法理论和根轨迹法理论。
Shaking frequency adjustment, rectifier automatic control system, computer control system.
振筛频率调整、整流器自动控制、计算机控制系统。
The movement law and electric driving system are analyzed. Variable frequency technique used in the system is discussed and PLC is used for automatic control of the pumping unit.
分析了数控抽油机的运动规律及电力拖动系统，论述了变频调速技术在系统中的应用。应用可编程控制器(PLC)完成抽油系统的自动控制。
DSO covers the theories of signal pretreatment, data collection, frequency detection, automatic control, analysis of frequency spectrum and data processing.
其中涉及到信号预处理、数据采集、同步触发、测频、自动控制、数据显示和处理、频谱分析等诸多方面的理论。
Because power systems are complex and multi-variable, it is very difficult to realize automatic secondary load-frequency control.
电力系统一般都很复杂且变量又多，实现二阶负载—频率自动控制也相应变得很困难。
This paper introduced a design method of the automatic frequency and power control of ship power station based on Canbus and DSP.
介绍一种基于CAN总线和数字信号处理器DSP的船舶电站自动调频调载控制器的研制方法。
Control of microcomputer, frequency control of motor speed, touching panel, programmable operation with RCF automatic computing and setting, adjustable rise-and-fall speed.
微机控制、变频调速、触摸面板、可编程操作、具有RCF自动计算与设定、升降速可调。
This equipment is simple and easy to clean, has frequency control, small power, automatic discharge, and fine quality particles. The whole structure is made of 304 stainless steel.
此设备清洗简单、变频调速、功率小、自动出料、颗粒优良、整机全结构304不锈钢制造。
Purpose: wire wound resistor in ceramic casing is used in circuit of automatic control system, frequency conversion control system, power supply, top grade acoustics.
用途：陶瓷绕线电阻主要用于自动化控制系统，变频控制系统，电源设备，高档音响等电路中。
The condenser pump frequency conversion revolution plays a key role in the condensed water system automatic control loop.
凝结泵变频改造对凝结水系统中的自动控制系统影响很大。
Fully automatic frequency variation speed regulating NC die cutting production line control system;
全自动变频调速、数控冲切生产线控制系统；
Full-automatic box folding-gluing machine features stable performance, simple operation, and adopts control by imported variable frequency counter, to achieve stable, accurate and quick production.
全自动糊盒机系列具有性能稳定，操作简单，采用进口变频计数控制，达到稳、准、快的目的。
Full-automatic box folding-gluing machine features stable performance, simple operation, and adopts control by imported variable frequency counter, to achieve stable, accurate and quick production.
全自动糊盒机系列具有性能稳定，操作简单，采用进口变频计数控制，达到稳、准、快的目的。
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