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Our main products are high refractive index glass beads, specifications have 1.9,1.93,2.2,2.25 is a special glass industry in the emerging high-tech products, is to create all kinds of reflective material return to the main components.
公司主要产品为高折射率玻璃微珠,规格有1.9、1.93、2.2、2.25,是特种玻璃行业中新兴的高科技产品,是制造各类回归反光材料的主要元件。
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The thesis contains five chapters. The first chapter summarizes the development and research of switched reluctance drive, discusses the main research direction, and explains the main work in this paper. In chapter 2, hardware system which includes the design of power converter and various control circuit is discussed. TMS320LF2407 DSP is used to design the hardware circuits of SRM control system, and design details including the current detection, position sensing, fault protection, speed detecting, keyboard and display etc. are provided. Because of the full use of the abundant peripheral resources of DSP, it comes to the aim simplifying the circuit structure and heightening the reliability. In chapter 3, the application of neural network on SRM control system is introduced, a new the application of neural network and the method of sampling is proposed and a simulation system based on Matlab/Simulink is established. Chapter 4 discusses the routine designing issue. Because the modularized programming method is adopted, and multi-interrupt processing technique is used, operation efficiency of the control software is highly raised. At last, the foregoing SRM control system is tested. Speed adjustment is realized, and other targets on the research and design of SRM control system are reached, which establishes a good foundation for further research.
本文共分五章,第一章概述了开关磁阻电机调速系统(Switched Reluctance Drive,简称SRD)及其发展和研究现状,论述了其主要研究方向,并说明了本文的主要工作;接下来的一章主要讨论了SRM的硬件系统,主要包括功率变换器的设计和各种控制电路的设计,本文以TMS320LF2407为核心设计了开关磁阻电机控制系统硬件电路,给出了包括电流检测、位置检测、故障保护、测速电路及键盘和显示电路等部分电路的详细设计,充分利用了DSP的丰富外设资源,达到了简化电路结构、提高运行可靠性的目的;第三章介绍了人工神经网络在开关磁阻电机控制系统中的应用,提出了一种新的应用方式(利用GPFN神经网络调节PI参数)以及如何采取样本,搭建了基于Matlab/Simulink的仿真系统;在第四章中,讨论了开关磁阻电机控制软件的设计,采用模块化编程方法,采用基于多中断的控制程序,提高了控制软件的效率;最后,对所设计的开关磁阻电机控制系统进行了实验,实现了电机调速,达到了开关磁阻电机控制系统研究和设计的预期目标,为更近一步研究打下了基础。
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With the trade mark "KINGMAC" as the main part, it has been a large productive and trading enterprise with research and own brand manufactured in serialization Its main productions for auto are special fiber brake-broke, hitch ball, transversal ball, universal joint assembly, clutch assembly, filter, engine bearing linter, thrust film, hydraulic brake master pump and branch pump, etc; for motorcycle are gate lock, gate switch, Instrument, fuel sensor, brake pump, electronic luminescence filter, etc.
公司以"KINGMAC"商标为主体,形成了系列化、规模化、科研化、品牌化的生产型贸易型企业,现主要产品有汽车高级特殊纤维刹车片、悬挂球头、横拉球头、万向节总成、离合器总成、滤清器、发动机轴瓦、止推片、液压制动总泵、分泵等。摩托车系列产品有电门锁、闸把开关、仪表、燃油传感器、制动泵、电子冷光片等。
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The main purpose of the thesis is choosing the more superior distribution among normal distribution, logarithmic normal distribution, weibull distribution, beta distribution and gamma distribution when they are used for fitting and forecasting ten main trees diameter distribution of natural secondary forest in baotianman on basis of analyzing and comparing the data from the 32 plots of natural secondary forest in baotianman.
以宝天曼天然次生林32块样地的调查数据为依据,分别以正态分布、对数正态分布,Weibull分布,Beta分布,Gamma分布拟合及预测宝天曼自然保护区天然次生林10种主要乔木树种直径分布,并对其适用性进行分析、比较,选出最适合于拟合及预测该林分直径结构的分布。
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Subsequently, the niche of Longspur epimedium in the range of measured value of main factor in different regions was calculated for the optimal the range of value of main environmental factor for Longspur epimedium growth, based on the results of cluster analysis and combined with field survey the actual situation.
随后,依据聚类分析结果,结合野外调查实际情况,在主要环境因子各段测量值范围上计算淫羊藿生态位,探讨最适宜淫羊藿生长的主要环境因子的数值范围。
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The main portion of process will also look familiar to the main body of code in friends1.py.
看起来process的主体部分也和friends1.py中主体部分的代码相似。
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December 9, December 10 * ST shares Amoi to achieve three consecutive trading days or restrictions, December 10 show that the turnover of motor ability tests, the main buyer, including the sea Shenzhen Securities Sales Department Hongling Road, Everbright Securities, Ningbo, the liberation of South Securities Sales Department, Everbright Securities Jinhua West Sungai securities business department, a new era of Xiaoshan Road Sanmenxia securities business department Securities, Huatai Securities in Nanjing only Maying securities business department, The main seller including Haitong Securities Hongling Road Shenzhen Sales Department, Southwest Securities Mingyue Canton all the way securities business department, Everbright Securities Jinhua West Sungai securities business department, Huatai Securities in Nanjing Maying only securities business department, Guangfa Securities Beijing Chaoyang door Beidajie securities business departments.
12 8,12月9日,12月10日* ST股票夏新在实现连续三个交易日或限制,12月10日显示,运动能力测试,主要买主,包括海证券营业部深圳红岭营业额路,光大证券,宁波,南证券营业部,光大证券金华双溪西证券营业部,一个新的时代解放三门峡萧山路证券营业部证券,华泰证券在南京只有马营证券营业部,主要包括卖方海通证券深圳红岭中路营业部,西南证券广州明月一路证券营业部,光大证券金华双溪西证券营业部,华泰证券在南京只有马营证券营业部,广发证券北京朝阳门北大街证券营业部。
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On the net collect summed up the following respects, offer text to receive the main page on the site repeatedly, according to website size, more or less can webpage numerary receive all pages repeatedly even; For every join provides a brief introduction, in order to hints this one's duty allows the person that visit is about which on one hand; Exceed in website map and text the mainest crucial term alludes inside join, the help searchs theme of page of join of engine identifying place is about which on one hand; Help engine indexes a few dynamic pages, because a few pages will be of dynamic generation, if not be user behavior is called,will not show come, can put this join on website map, in order to help the dynamic page with engine main index; To make website map attracts the visit of network spider, the descriptive sex statement with go up certain must be written to use this connective keyword to have simple description at the back of join, but the use keyword that cannot transfer, can be just the opposite to what one wished otherwise; Because general spider catchs page of before 3 class only, so website map makes the same score better more, what point to here is logical way, is not physical method.
在网上搜集总结了以下几个方面,提供文本连接到站点上主要的页面,根据网站大小,网页数目的多少甚至可以连接到所有的页面;为每个连接提供一个简短的介绍,用以提示访问者这部分内容是关于哪一方面的;在网站地图和文本超连接里面提及最主要的要害词语,帮助搜索引擎识别所连接页面主题是关于哪一方面的;帮助引擎索引一些动态页面,由于一些页面将是动态产生的,假如不是用户行为调用将不会显示出来,可以将此连接放在网站地图上,以帮助引擎索引重要的动态页面;为了使网站地图吸引网络蜘蛛的访问,一定要在连接后面写上一定的描述性语句并使用此连接的要害词进行简单描述,但不能过渡的使用要害词,否则会适得其反;因为一般蜘蛛只抓前三级页面,所以网站地图越平越好,这里指的是逻辑路径,而不是物理路径。
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It is presented that the main reason of force change in main bearing is the change of oil film force.
而理论计算证明,润滑油粘度和主轴承间隙对最小油膜厚度有着直接的影响。
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Constantly walk the Christ of main way many saint Tusk, hear in this world after getting to night boundary the person relieve the orison of calamity, will pass by for it prevent disaster in addition to E, develop for the main way glorious.
坚定不移地走主道的基督众圣徒,到冥界后听到世上人解除危难的祈祷,就会过去为之消灾除厄,为主道发扬光辉。
- 推荐网络例句
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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)。
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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%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。