查询词典 high power

his paper mainly introduces the research activities conducted in recent years at CIAE in the field of high intensity cyclotrons, and some critical technologies we have as well as the research progress to date. The technologies presented in this paper include high intensity cyclotron physics; production, adjustment and control of high intensity H-ions; advanced magnetic technique, high-power and high-stability RF technology, vacuum and comprehensive cyclotron experimentations, etc.

本文主要介绍了中国原子能科学研究院自2000年以来在强流回旋加速器领域的研究工作进展和到目前为止所掌握的一些强流回旋加速器的关键技术，内容涉及强流回旋加速器物理，强流负氢束的产生、调节、控制与诊断技术，先进磁工艺技术，大功率高稳定度高频技术，真空技术，回旋加速器综合试验技术等。

The MG700-WD mining machine is a kind of electricity drawing and high-power mining machine, this machine's fuselage is low, installation-power is large, all electric motor are fixed up horizontally, mechanical drive is all the transmission of gear, electric motor、walking case drive wheel package etc, can take from old pool side out, so the transmission is high in efficiency, easy to install and maintain.

以下为资料的部分内容，如需要全部资料请点击获取全文点击进入支付宝和网上银行快速付款通道也可咨询客服 QQ：893628136 QQ：136775125论文编号：JX414 包括设计图，说明书字数：22278。页数：75MG700-WD型采煤机是一种电牵引大功率采煤机，该机机身矮，装机功率大，所有电机横向布置，机械传动都是直齿传动，电机、行走箱驱动轮组件等均可从老塘侧抽出，故传动效率高，容易安装和维护。

The MG700-WD mining machine is a kind of electricity drawing and high-power mining machine, this machine's fuselage is low, installation-power is large, all electric motor are fixed up horizontally, mechanical drive is all the transmission of gear, electric motor、walking case drive wheel package etc, can take from old pool side out, so the transmission is high in efficiency, easy to install and maintain.

以下为资料的部分内容，如需要全部资料请点击获取全文论文编号：JX414 包括设计图，说明书字数：22278。页数：75MG700-WD型采煤机是一种电牵引大功率采煤机，该机机身矮，装机功率大，所有电机横向布置，机械传动都是直齿传动，电机、行走箱驱动轮组件等均可从老塘侧抽出，故传动效率高，容易安装和维护。

The status quo of the development of the high voltage high power conversion technology is summarized in chapter 1 and two interrelating technology developments - power switching devices and digital control technology, are introduced. In chapter 2, the topologies of multilevel converters and control schemes are summarized. Moreover, their advantages, disadvantages and application fields are also analyzed and compared.

本文首先在第一章中对高压大功率变流技术研究现状进行了回顾，并对与多电平变流技术紧密相关的电力电子功率器件、数字控制技术的发展情况做了介绍；第二章对目前多电平变流器的电路拓扑和控制策略进行了总结，并将各自的优缺点和应用场合加以分析、比较。

Our product family include the high power led units, led spotlights, grid lamp, street light, led downlight and Led grow light etc.For the time being , we cooperate with some Agricultural Universities and developed several items of high power LED Grow lights, they are very nice replacement for the HPS and MH lights.

公司产品包括照明灯系列，路灯系列和植物灯系列，广泛应用于机场、车站、商场、酒店、舞厅、饭店、家庭、橱窗等室内照明、装饰；公路、街道、庭院等室外照明；农场、植物培育室、种植大棚等植物生长照明，促进植物生长、延长花期及使果实增产。

Beijing BED Tech-Trade Development Co Ltd is a high-tech joint-stock enterprise which has been engaged in the research, manufacture trade of the rf high power dummy load power meters, attenuators terminations.

北京贝尔德科技有限责任公司是一家集科研、生产、贸易为一体的高科技股份制企业。从事《BED》为品牌的全系列负载功率计，及射频微带系列电阻、负载、衰减器件等产品的开发、生产。

This paper attempts to associate PFC technology with Quasi-Resonant DC/DC Converter and Synchronous Rectifier technology, to work out a novel switching power supply with higher efficiency and low contamination, which both achieved high power factor, improved effecting on electrical network and ensured high efficiency, furthermore, it is easy to be realized and controlled in circuit.

本文首先阐述了开关电源、功率因数校正技术和同步整流技术的发展及现状，对DC/DC变换的拓扑结构进行了选择，确定了带有隔离的准谐振(Quasi-Resonant)反激型电路，可以有效地降低损耗；接着本文对几种常见的PFC拓扑电路进行分析对比，从中选择了BOOST型电路，对工作在临界状况下的电路进行了分析，采用跟随输入电压的升压变换新技术，减小了电感体积，同时降低了开关管的电压应力，既简单又有效地实现了功率因数校正，并发现此技术值得推广；由于反激型变换器的效率一般都较低，所以本文在传统同步整流技术基础上对其加以改进，设计出一种新颖、高效的同步整流方案。

1Finding out the principles of the two-dimensional finite element method for temperature field simulation of high power laserThe profile and boundary conditions of the chip and submount of the high power laser is simply, we adopt the right-angled triangle cell to divide the submount and chip of the laser into triangular elements.

1找到了适用于大功率半导体激光器温度场模拟的二维有限元规则大功率半导体激光器芯片与载体具有规整的外形和多个边界条件，所以我们对激光器载体和芯片都采用了直角三角形单元进行有限单元剖分。

Under the background of High Power Microwave technology, a novel family of waveguides for high power microwave transmission is proposed. Some other new types of guided wave structures formed by some classical geometrical curves are also explored in this dissertation.

在高功率微波技术日益得到重视的背景下，本文提出了一种新的大功率导波结构——五边形波导族，并对利用经典几何曲线构成的几种导波结构作了探索。

Seriously, come over as soon as possible, may be X'mas time frame for a 5-day aerial tour of the High Sierra, the Great Basin, and then the famous Zion, Bryce Canyon, Lake Power, Monument Valley, Canyonlands and Arches National Parks.

说真的，尽速来吧，或许圣诞节期间的5天航空旅行，包括High Sierra， the Great Basin，有名的Zion， Bryce Canyon， Lake Power， Monument Valley， Canyonlands 和Arches 国家公园。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。