First, the dissertation summarizes the properties, developing state and application fields of BLDCM, then its fundmental structure; operation principle and control strategy is also presented. On the base of roundly analyzing all kinds of the drive motor in electromotion type railway switch, BLDCM is proposed to replace the formerly traditional DC motor in railway switch. Second, the whole design scheme and key technology of control system is put forward based on analyse of the technical parameters and requirements.

首先，論文介紹了無刷直流電動機的特點经典1页日韩中文字幕视频、發(fā)展和應(yīng)用概況www.色操色，分析了稀土永磁無刷直流電機系統(tǒng)的基本構(gòu)成、工作原理和控制方法无码人中文字幕黑人；在對目前各種電動轉(zhuǎn)轍機驅(qū)動電機分析的基礎(chǔ)上，提出將稀土永磁無刷直流電機用于鐵路轉(zhuǎn)轍機，以替換原有的串勵有刷直流電動機在线视频免费理论片A片。

The base support structure is in the form of an endless loop, at least one of the inner and outer surfaces of which is coated with a second polymeric resin material.

基本支承結(jié)構(gòu)的形式為一無端環(huán)，其內(nèi)欧美性爱首页、外表面中至少有一個表面被第二聚合樹脂材料覆蓋人妻AV无码久久系列。

The second section introduces the policies of single-stage inventory management and several conventional inventory models, including classical EOQ models, base-stock policy, etc.

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In the first part we have tried to put forward a definition of the euphony and further to analyze its position in the study of rhetoric; In the second part, the euphony phenomenon has been classified according to different dimensions such as function and culture, etc; In the third part we have given the euphonys characteristics wider coverage to deal with the different reflections in the fields of pronunciation, grammar, semantic meaning and context; In the fourth part, we have analyzed the formation of euphony from the point of aesthetics, psychology, social culture and linguistic characters, etc; Base on what is discussed above the euphony phenomenon both in different folkways and styles of writing have been studied in the fifth and sixth parts; And the final seventh part is the conclusion.

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In the second part, expatiate the theory base of the research and the relevant concept.

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For decades, Hong Kong has been the third largest film industry base and the second largest film exporter.

幾十年來十八禁免费A片AV毛片无码网站，香港一直是第三大電影工業(yè)基地和第二大電影出口地。

In the second five-year plan, the company invested 35 million to build a large-scale modern production base.

在第二個五年計劃中国产AV一区网站，公司擬投資 3500 萬建立一個大型的現(xiàn)代化生產(chǎn)基地午夜精品乱人伦小说区。

Rawls's criticism to utilitarianism has two aspects: first, it is against the teleology of utilitarianism; second, it is gainst the deduction base of utilitarianism.

羅爾斯對功利主義的批判主要從兩個方面展開：一是針對功利主義的目的論色色射射色，二是針對功利主義的演繹基礎(chǔ)一级做a午爰片久久毛片A片午。

Our country ethylene diamine mainly uses in producing the agricultural chemicals (woods manganese zinc, dithane Z-78, generation of woods amine and pesticide, weed killer, disinfectant), the surface active agent (lives geminate stearic acid amide, alkyl imidazole lin, double amide, with oxirane, epoxypropane synthesizes non-ionic surface active agent), the epoxy resin firming agent (polyamide resins, epoxy firming agent, hydroxyethyl ethylene diamine and so on), the wash assistant (ethylene diamine four ethanoic acid and sodium salt series chelating agents), medicine raw material (aminophylline, washes must be peaceful, nose eye only, deinsectization spirit and so on), water treatment medicinal preparation (ethylene diamine four methylene phosphonates, second grade trunk base ethylidene two phosphine acids), corrosion inhibitor dye fixing agent, photography materialFixing bath and oil dope and so on.

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The dramatist and musical characters and the perfect combine between music and drama are the purports. The thesis is divided into three parts: the preface, four chapters and the conclusion. In the preface it is explained that what in this thesis is expounded and what kinds of study about the opera there are in Chinese and in the other area of the world. The first chapter is a summary about Gounod and his"Faust", which is the typical work in lyric operas. In the second chapter analysis on drama, the character and figures of the roles in the opera is made, and the characteristic of the plot ,the creation of opera and framework is put together. In the third chapter the music in the opera is studied, and the characteristics are put together on the base of particular analysis on typical passage of aria chorus ensemble. In the last chapter, perfect combine between drama and music is presented by study on Faust's character and psychology,and it is discussed that music implied the plot. And the conclusion is a whole comment of the opera and it's musical characteristics

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