英语释义

1. a function of an electronic circuit that allows a radio transmitter or receiver to stay adjusted to a specific frequency (such as one used by a radio station) without manual control

片语

high frequency gain control高频增益控制

frequency interference control频率干扰控制

frequency alias control system频率控制方式

frequency response control频率响应控制

intermediate frequency gain control中频增益控制

frequency tracking control频率跟蹤控制

Frequency Interfernce Control频率干扰控制

variable frequency generator control可变频率发生器控制器

variable frequency electrical control变频电控

英汉例句

• a kind of medium voltage ac variable frequency control system, which consists of voltage source inverter, sinuous filter and stepup transformer with variable frequency, is introduced.

  介绍一种采用低压电压型变频器、正弦波滤波器和变频升压变压器构成的低-高式中压变频控制系统。

• on the basis of analyzing vibratory frequency control system of vibratory roller, the controller are designed and the plan of vibratory frequency constant control by pid are put forward.

  在分析振动压路机振动频率控制系统的基础上，对控制器进行了设计，提出了采用pid控制实现振动频率恒定的方案。

• frequency control the use of fans, water pumps, type of machinery to carry out speed control method to regulate the flow of energy conservation, economic efficiency is very important significance.

  采用变频调速控制，对风机、水泵类机械进行转速控制来调节流量的方法，对节约能源，提高经济效益具有非常重要意义。

• a frequency control method for rsc converters was achieved based on the output voltage expression.

  基于输出电压表达式，还提出谐振开关电容变换器的频率控制方案。

• the developing situation and trend of frequency control of motor speed in iron and steel industry were analyzed.

  对交流变频调速技术在钢铁行业中的发展情况与趋势作了分析。

• the frequency control principle is discussed, and the designing circuit and test result given, which prove that the solution works.

  本文讲述了频率控制原理，给出了实现电路和测试数据，证明了此方法是可行的。

• this paper introduces a method to realize frequency control of a noncoherent frequency-agility adaptive radar by using frequency setting and waiting, digital local oscillator and micro-processor.

  介绍了采用置频等待、数字本振及微处理机技术实现非相参捷变频自适应雷达频率控制的方法。

• surface mounted piezoelectric devices for frequency control and selection - standard outlines and terminal lead connections - part 1 : plastic moulded enclosure outlines.

  频率控制和选则用表面安装的压电器件。标準外形和终端引线的连接。第1部分：塑料模压外壳外形。

• on the basis of analyzing vibratory frequency control system of vibratory roller, the plan of vibratory frequency constant control by pid is put forward; a special controller is selected.

  在分析振动压路机振动频率控制系统的基础上，提出了采用比例、积分、微分（pid）控制实现振动频率恒定的方案；选择了适用于工程机械的专用控制器。

• this paper deals with the operation principle of spwm single phase air conditioner converter, the circuit make up and thermostatic frequency control method.

  介绍一种正弦波脉宽调制型（spwm）单相空调变换器的工作原理、电路组成及恒温频率控制方法。

• 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。

• this paper discusses a minimum of parameters to determine the trajectory of a circular interpolation method and the method of frequency control stepper motor.

  文中讨论了一种以最少参数确定一条圆弧轨迹的插补方法和步进电机变频调速的方法。

• the energy optimization control of asynchronous machine often uses the permanent slip frequency control according to the electrical machinery static model.

  感应电机能量优化控制常根据电机静态模型采用恒转差频率控制。

• with fixed frequency control circuit, it provides with over voltage , over current , overheat and short circuit protection.

  该系列电源适配器，采用固定频率控制电路，具备限流、限压、过温、短路全功能保护。

• secondary cooling fan that the frequency control technical reformation.

  次要说明冷却风机的变频调速技术改造。

• the improvement efficiently(eliminates) the quantitative error of the frequency control word, simplifies the control of dds, decreases the required source to implement dds.

  从而有效地解决了由于频率控制字的所带来的量化误差，简化了dds的控制，减少了实现dds所需资源。

• an ultrashort term frequency forecast of the system frequency is made for the hydropower station and the results have been applied in computer frequency control of the hydropower station.

  本文对主调频水电站进行系统频率超短期预报，并把预报结果直接应用于水电站的计算机频率控制。

• a slip frequency control system of asynchronous motor used dsp as control center is presented, which apply to the electric tourist car.

  介绍一种以dsp为控制核心的异步电动机转差频率控制系统在电动游览车中的应用。