查询词典 converter

A novel phase-shifted zero-voltage and zero-current switching PWM DC/DC full-bridge converter is presented in this thesis, which is based on the groundwork of summarization of the development of Power Electronics in recent years and lucubration in theoretical basis of modern high frequency soft switching power convert technique and analysis of operation principle, characteristic of the circuit and inherent drawbacks of the traditional phase-shifted zero-voltage switching PWM DC/DC full-bridge con...

本文在对近年来电力电子学科的发展高度综述和对现代高频软开关功率变换技术理论基础深入研究的基础上，对传统的移相控制ZVS PWM DC／DC全桥变换器的工作原理、电路特性、存在的缺点进行了分析，在此基础上提出了一种改进型的移相控制ZVZCS PWM DC／DC全桥变换器。

Next, the following points are emphasized:(1) The design of photoelectric conversion preamplifier circuit. In order to improve the measurement accuracy of luminometer and ensure linear relationship of the photoelectric, operational amplifiers is designed as current-voltage converter form, on the one hand, it is available to zero-load effect; on the other hand, short-circuit current can be transformed into a voltage volume through the feedback resistor, it is equivalent to voltage drop flowed through a load resistor on the actual effect.

其次，本文重点做了以下工作：(1)光电转换前置放大电路的设计：为了提高照度计的测量准确度，确保光电间的线性关系，本设计把运算放大器接成电流电压变换器的形式，一方面可得到零负载效应；另一方面，短路电流通过反馈电阻变成电压量，实际效果相当于流过一个负载电阻形成的压降。

By using Flash software produced a number of fluid flow in the animation, including the viscous flow in vivo experiments indicate friction, rotation speed Dengjiao containers of liquids in relative balance, the system and control of, weak disturbance in the transmission space - Mach cone, the disturbance wave Dissemination process, bypassing the wings of the two-dimensional flows, ease converter and blast crisis and stagnation flow indicate parameters and critical parameters such as the concept that a number of animation, produced by sports meeting between the animation, shape meeting between animation, masking animation and time Axis to achieve those effects the flow of fluid animation, and by adding these buttons used to control the flow of fluid animation, and so will the speed of the fluid flow in a clear show up.

本文利用Flash软件制作了流体若干流动现象的动画，包括粘性流体内摩擦实验示意、等角速旋转容器中液体的相对平衡、系统与控制体、微弱扰动在空间的传播——马赫锥、扰动波传播过程、绕过机翼的二维流动、缓变流与急变流示意以及滞止参数和临界参数的概念说明等若干动画，通过制作运动补间动画、形状补间动画、遮罩动画和时间轴特效来实现这些流体流动的动画效果，并通过添加按钮用于控制这些流体流动的动画的速度等将上述流体流动现象清晰的展示出来。

This paper describes how to use Flash production of viscous flow in vivo experiments indicate friction, rotation speed Dengjiao containers of liquids in relative balance, the system and control of, weak disturbance in the transmission space - Mach cone, the disturbance wave propagation process, bypassing the wings The two-dimensional flows, ease converter and blast crisis and stagnation flow indicate parameters and a number of critical parameters, such as animation.

本文介绍了如何运用Flash制作粘性流体内摩擦实验示意、等角速旋转容器中液体的相对平衡、系统与控制体、微弱扰动在空间的传播——马赫锥、扰动波传播过程、绕过机翼的二维流动、缓变流与急变流示意以及滞止参数和临界参数等若干动画。

This paper describes how to use Flash production of viscous flow in vivo experiments indicate friction, rotation speed Dengjiao containers of liquids in relative balance, the system and control of, weak disturbance in the transmission space - Mach cone, the disturbance wave propagation process, bypassing the wings The two-dimensional flows, ease converter and blast crisis and stagnation flow indicate parameters and critical parameters such as the concept that a number of animation, produced by sports meeting between the animation, shape meeting between animation, masking effects animation and timeline to achieve these fluid flow The animation, and by adding these buttons used to control the flow of fluid animation speed.

本文介绍了如何运用Flash制作粘性流体内摩擦实验示意、等角速旋转容器中液体的相对平衡、系统与控制体、微弱扰动在空间的传播——马赫锥、扰动波传播过程、绕过机翼的二维流动、缓变流与急变流示意以及滞止参数和临界参数的概念说明等若干动画，通过制作运动补间动画、形状补间动画、遮罩动画和时间轴特效来实现这些流体流动的动画效果，并通过添加按钮用于控制这些流体流动的动画的速度。

An introduction for forward topology multiple output DC/DC converter is made. A brief introduction was made to the two secondary side control technique, using magnetic amplifier and secondary side PWM regulator. And the differences between the two methods are compared.

摘 要：介绍了正激式DC/DC多路输出电源拓扑，简单介绍了两种精确调节技术：利用磁放大器进行后级调节和次级同步调节技术实现精确输出，并比较了其各自的优缺点。

The scheme takes the difference between USA grid and PRC grid into account, and can run above the rating parameter, and it would benefits for the J-TEXT operation on the rating parameters. The stator magnetic flux linkage vector oriented control method is defined for motor double-feed varying speed system, thereafter the ac converter scheme of 100MW motor-generator double-fed varying speed system is proposed.

针对中美电网之间的差异所导致的机组转速下降和储能不足等问题，设计了100MW脉冲发电机组的双馈调速系统初步方案，方案利用机组电动机转子为绕线式转子的特点，采用双馈调速的方法将机组转速提升至750rpm，以解决机组储能不足的问题。

Automotive supplier Lukcyy production management company is a large car modification parts automotive supplying base includes operators, including car surrounded by large, car wing / tail, automobile machine cover, auto exhaust pipe, auto balance bar / top bar modification, such as pieces of manufacturers, the project covers the automotive care bar, stainless steel car wheel eyebrow, the threshold of Article vehicle, motor vehicle be decorated windows, automotive fuel tank cover accessories, car guard, car decoration articles, car steering Lighting, automotive LED, HID car barometer block car, car fender, pedal car with LED Yingbin, car modification at the front lines, well-known automotive spark plugs, automotive performance style, fuel-efficient car accelerator, auto magnetizer, auto rectifier, auto brake conversion, modified car lighting, as well as racing car steering wheel other car modification products such as accessories include car seat cover, car oxygen bar, auto pedal, auto touch-up painting pens, spray cans of automotive touch-up painting, charcoal car, car perfume, car CD package / CD folder, the first car pillow, car pillow, car solar doll, shaking his head so on, it supplies include automotive inverter / power converter, car mobile phone charger / car charge, car ashtray, car seat belt / car safety buckle, car foot pad, barometer block car, automotive beauty products contain conservation turtle license, vehicle 3m series, auto tools automotive products such as super-supermarkets, welcome to visit.

在批发领域，朗基安蒂公司采用了当今国际流行的虚拟企业建构模式，通过自已拥有的产品研发中心商品配送中心，和信息传递中心代理加工及批发国际知名品牌汽车改装装饰产品，以便于配套发货和国内车主会员的迫切要求，我司代理项目涵盖汽车不锈钢轮眉、汽车门槛条、汽车车窗饰条、汽车油箱盖饰件、汽车后护板、汽车后饰条、汽车转向灯饰，汽车LED ，车载DVD ，汽车HID 以及汽车晴雨挡、汽车挡泥板，汽车带LED迎宾踏板，汽车改装点火线，汽车知名火花塞，等汽车用品的生产和研发，装饰品包含汽车座套，汽车氧吧，汽车脚踏板，汽车补漆喷罐，汽车竹炭，汽车香水，汽车CD包/ CD夹，汽车头枕，汽车抱枕，汽车太阳能摇头公仔等，实用品包含车载逆变器/电源转换器，汽车手机充电器/车充，汽车烟灰缸，汽车安全带/汽车安全带扣，汽车脚垫，汽车晴雨挡，汽车美容养护品包含龟牌，汽车用3m系列，汽车工具等汽车产品超大汽车卖场，均以国内最好质量，最低价格出售，欢迎光临指导，订购朗基安蒂汽车用品。关于更多朗基安蒂产品请咨询客服人员。

Automotive supplier Lukcyandy production and management company is a large car modification parts automotive supplying base includes operators, including car surrounded by large, car wing / tail, automobile machine cover, auto exhaust pipe, auto balance bar / top bar modification, such as pieces of manufacturers, the project covers the automotive care bar, stainless steel car wheel eyebrow, the threshold of Article vehicle, motor vehicle be decorated windows, automotive fuel tank cover accessories, car guard, car decoration articles, car steering Lighting, automotive LED, HID car and barometer block car, car fender, pedal car with LED Yingbin, car modification at the front lines, well-known automotive spark plugs, automotive performance style, fuel-efficient car accelerator, auto magnetizer, auto rectifier, auto brake conversion, modified car lighting, as well as racing car steering wheel and other car modification products such as accessories include car seat cover, car oxygen bar, auto pedal, auto touch-up painting pens, spray cans of automotive touch-up painting, charcoal car, car perfume, car CD package / CD folder, the first car pillow, car pillow, car solar doll, shaking his head and so on, it supplies include automotive inverter / power converter, car mobile phone charger / car charge, car ashtray, car seat belt / car safety buckle, car foot pad, barometer block car, automotive beauty products contain conservation turtle license, vehicle 3m series, auto tools automotive products such as super-supermarkets, welcome to visit.

朗基安蒂汽车用品公司(www.luckyandy.com咨询热线-020-85872060)经营内容包含包括汽车大包围，汽车定风翼/尾翼，汽车机盖，汽车排气管，汽车平衡杆/顶吧等改装件的厂家，项目涵盖汽车护杠，汽车不锈钢轮眉、汽车门槛条、汽车车窗饰条、汽车油箱盖饰件、汽车后护板、汽车后饰条、汽车转向灯饰，汽车 LED，汽车 HID以及汽车晴雨挡、汽车挡泥板，汽车带LED 迎宾踏板，汽车改装点火线，汽车知名火花塞，汽车高性能风格，汽车省油加速器、汽车磁化器、汽车整流器、汽车刹车改装、汽车灯光改装以及汽车赛车方向盘等赛车改装用品等，装饰品包含汽车座套，汽车氧吧，汽车脚踏板，汽车补漆笔，汽车补漆喷罐，汽车竹炭，汽车香水，汽车 CD包/CD夹，汽车头枕，汽车抱枕，汽车太阳能摇头公仔等，实用品包含车载逆变器/电源转换器，汽车手机充电器/车充，汽车烟灰缸，汽车安全带/汽车安全带扣，汽车脚垫，汽车晴雨挡，汽车美容养护品包含龟牌，汽车用3m系列，汽车工具等汽车产品超大卖场，欢迎大家光临。

The Magnitogorsk Works exports approximately 60 per cent of its products to the international market where there is demand for products form MMK's Oxygen Converter Division, section mills and almost all of strip mills.

马哥尼托哥斯克钢铁厂向国际市场出口大约60%的产品。从地理上来看，MMK的产品出口至东南亚，非洲，东欧和独联体。

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％。