查询词典 supply frequency

A high-frequency electronic therapeutic instrument for stomatopathy is composed of power supply, high-frequency oscillator and therapeutic mode controller and technically features use of two independent stabilized power supplies, stepless regulation, and switch signal generator to control output interval and therapeutic mode switching.

本发明涉及的是一种用于口腔科的高频电子治疗仪，它是由电源电路、高频振荡电路和治疗方式控制电路组成，其技术特点是采用独立的两路稳压电源供电，并实现无级可调，设置开关信号发生电路控制治疗输出的时间间隔和进行治疗方式的转换。

In this paper,The necessity of frequency tracking in ultrasonic cleaning equipmens is discussed.Based on a introduction on the principle of the mian circuit of the ultrasonic power supply for cleaning equipmens and the principle of PLL ,the output frequency of 74HC4046 is changed by a singlechip measuring the phase difference between volage and current.

本文讨论了超声波清洗机中自动频率跟踪的必要性，在介绍超声波清洗机的主电路原理、PLL锁相环原理的基础上，利用单片机检测超声电源负载的电流、电压的相位差，来改变74HC4046 的输出频率，完成了变步长频率跟踪软件设计。

The variation of demand appear in market with frequency. Due to "Bullwhip Effect", the supplier miss direction in the preparing for target inventory. The purpose in this paper want to analyze supply history of M company and find out the better model for supply chain management.

需求的波动是市场存在且经常发生的现象，透过长鞭效应的放大，往往令源头供应商吃尽苦头，此一研究希望透过在个案公司中长期纪录的供需历史资料分析，解决此类供应链供货模式问题。

For power supply, we designed through invariable AC input, after being commutated into DC, then inverted AC through IGBT, realized the output of high frequency high voltage sinusoidal wave through inductor to leach wave and high frequency transformer to elevate voltage at last.

在电源的输出电路部分我们主要研究了高频高压变压器的改进，并设计制造了两种不同变比，不同规格，不同材料的高频高压变压器，分别是采用非晶合金材料为铁芯材料的环形变压器和以铁氧体为铁芯材料的U形变压器。

Ring, including high pressure air, FRP acid pH blower, electromagnetic pump, auto-powder-bubble machine, sludge dewatering machine, coaxial vortex pumps, chemical liquid filters, coaxial self-suction pump acid pH, vertical centrifugal pipeline Pumps, water-dirt pumps, horizontal direct-pumped, Shen stainless steel water pump, Gear pumps, two high-speed pumps, automatic booster pumps, automatic pressure booster pump, building water supply submersible pumps , Multi-Purpose centrifugal pumps, computer frequency constant pressure pump, electronic constant pressure booster pumps, reciprocating washing machines, pressure-pumping interactive tied, tied for interactive frequency constant pressure pump, stainless steel deep-well pump, dust collection machines and dust collection Equipment, gas-casual, casual trachea, and many other environmental chemical equipment and sewage treatment works, such as the planning design and construction.

包括环形高压风机，FRP耐酸硷送风机，电磁气泵，自动型粉体泡药机，污泥脱水机，涡流式同轴抽水机，化学液体过滤器，同轴自吸式耐酸硷泵浦，立式管道离心泵，沉水式污物泵，卧式直接式泵浦，沉水不锈钢泵，齿式水泵，两段高速泵，自动增压泵，压差式自动增压泵，大楼给水潜水泵，多段式离心水泵，电脑变频恒压泵，电子恒压增压泵，往复式清洗机，压差式交互并列泵浦，变频恒压交互并列泵浦，不锈钢深井泵，集尘机及集尘设备，散气盘，散气管等各式环保化工设备及污水处理工程的规划设计施工等。

Ring, including high pressure air, FRP acid pH blower, electromagnetic pump, auto-powder-bubble machine, sludge dewatering machine, coaxial vortex pumps, chemical liquid filters, coaxial self-suction pump acid pH, vertical centrifugal pipeline Pumps, water-dirt pumps, horizontal direct-pumped, Shen stainless steel water pump, Gear pumps, two high-speed pumps, automatic booster pumps, automatic pressure booster pump, building water supply submersible pumps , Multi-Purpose centrifugal pump, computer frequency constant pressure pump, electronic constant pressure booster pumps, reciprocating washing machines, pressure-pumping interactive tied, tied for interactive frequency constant pressure pump, stainless steel deep-well pump, dust collection machines and dust collection Equipment, gas-casual, casual trachea, and many other environmental chemical equipment and sewage treatment works, such as the planning design and construction.

包括环形高压风机，FRP耐酸硷送风机，电磁气泵，自动型粉体泡药机，污泥脱水机，涡流式同轴抽水机，化学液体过滤器，同轴自吸式耐酸硷泵浦，立式管道离心泵，沉水式污物泵，卧式直接式泵浦，沉水不锈钢泵，齿式水泵，两段高速泵，自动增压泵，压差式自动增压泵，大楼给水潜水泵，多段式离心水泵，电脑变频恒压泵，电子恒压增压泵，往复式清洗机，压差式交互并列泵浦，变频恒压交互并列泵浦，不锈钢深井泵，集尘机及集尘设备，散气盘，散气管等各式环保化工设备及污水处理工程的规划设计施工等。

Including Ring high pressure air, FRP acid pH blower, electromagnetic pump, auto-powder-bubble machine, sludge dewatering machine, coaxial vortex pumps, chemical liquid filters, coaxial acid pH self-suction pump, centrifugal vertical pipe Pumps, water-dirt pumps, horizontal direct-pumped, Shen stainless steel water pump, Gear pumps, two high-speed pumps, automatic booster pumps, automatic pressure booster pump, building water supply submersible pumps , Multi-Purpose centrifugal pumps, computer frequency constant pressure pump, electronic constant pressure booster pumps, reciprocating washing machines, pressure-pumping interactive tied, tied for interactive frequency constant pressure pump, stainless steel deep-well pump, dust collection machines and dust collection Equipment, gas-casual, casual trachea, and many other environmental chemical equipment and sewage treatment works, such as the planning design and construction.

包括环形高压风机，FRP耐酸硷送风机，电磁气泵，自动型粉体泡药机，污泥脱水机，涡流式同轴抽水机，化学液体过滤器，同轴自吸式耐酸硷泵浦，立式管道离心泵，沉水式污物泵，卧式直接式泵浦，沉水不锈钢泵，齿式水泵，两段高速泵，自动增压泵，压差式自动增压泵，大楼给水潜水泵，多段式离心水泵，电脑变频恒压泵，电子恒压增压泵，往复式清洗机，压差式交互并列泵浦，变频恒压交互并列泵浦，不锈钢深井泵，集尘机及集尘设备，散气盘，散气管等各式环保化工设备及污水处理工程的规划设计施工等。

Switching Power Supply has three kinds of control circuits: Pulse Width Modulation, Pulse Frequency Modulation, Pulse Width and Frequency Modulation.

开关电源有三种控制方式：脉冲宽度调制、脉冲频率调制、脉冲宽度频率调制。

A new control strategy based on repetitive control and digital PID control is presented in this paper, and a emulational model of a single-phase sine-wave variable frequency power supply which can be independentily variated by volt and/or frequency was designed for MATLAB/SIMULINK.

提出了一种基于重复控制和数字PID控制的新型控制策略，并在Matlab/Simulink软件环境下建立了独立调压、调频的单相正弦波变频电源的闭环控制系统的仿真模型。

Roger since the invention of the transistor oscillation push-pull single transformer DC converters, is to achieve high-frequency conversion control circuit beginning in 1957 the U.S. investigation self-invented the push-pull Two-transformer, 1964 U.S. scientists have proposed abolition of the frequency of the series switching power supply transformer, as envisaged in this power to the volume and weight of the decline was a fundamental way.

Roger发明的自激振荡推挽晶体管单变压器直流变换器，是实现高频转换控制电路的开端，1957年美国查赛（Jen Sen发明了自激式推挽双变压器，1964年美国科学家们提出取消工频变压器的串联开关电源的设想，这对电源向体积和重量的下降获得了一条根本的途径。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。