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This paper analysed the kinematic properties of ball joint hi nged on the piston rod and steering drag link of a separated assistant steering m echanism, and the equations of the path and mathematical model of pressure angle were established.

文摘：分析了分置式转向助力机构的液压缸活塞杆与转向直拉杆相铰接的球头销的运动特性，建立了其轨迹方程及压力角的数学模型。

Then in December, Human Rights Watch released an extensive report detailing Rio's history of extrajudicial killings by the police.

接著，12月时，人权观察组织发布一分内容广泛的报告，详述里约警方的私刑杀戮史。

Corrugated board production line generally includes the following parts: Mill Roll Stand, Pre-heater, Auto Splicer, Single facer, Overhead bridge conveyor, Multiple heater for liner, Gluer, Double facer, Slitter scorer, Cutter, Down stacker, Boiler and etc.

瓦楞纸板生产线一般由下列设备构成：原纸架、热缸机、接纸机、单面瓦楞机、天桥架、多重预热器、上浆机、双面机、分纸压线机、横切机、堆码机、锅炉等设备组合而成。

They were given a rating on a five-point scale to score their level of positive emotions.

接著他们依照正面情绪的程度，根据最高5分来评分。

The distribution of root concavity were frequently found on the distal and furcation surfaces.

根面凹陷位置的分怖，除了上颚臼齿根外，均集中於都接面，且远心面及面向根面叉部的根面有较高的发生率。5。

After a brief review of some important method and concept about the intermittency and fractal in high energy collision, our scientific works in this field are present systemmatically in this thesis, which are focused on several aspects as the following

本文首先简要介绍了高能碰撞间歇与分形研究中的一些重要的原理与概念。接下来系统地报告了我们在这一领域中所开展的部分研究工作，这些工作主要集中在以下几个方面

The amplifier itself consists of a cascade of RC neutralized common-emitter stages each with primary tuned interstage transformer.

放大器由中和了的共发射极级链接而成，级间用初级调谐的变压器耦合，叙述分三个部分：第一部分将中和了的共发射极电路用近似等效电路表示，第二部分分析级间网络，将晶体管放大器的功率增益表示成预给的频率函数后，就能导出各级间网络的谐振频率和Q值等，从而求出线路元件的数值。

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。

These 6 places are a webpage respectively: Content of Tiitle, Meta, headline, character, picture, exceed a link.

这6个地方分别是1个网页的：tiitle、meta、大标题、文字内容、图片、超链接。

I was woke by my mobile phone ring, it was a couple minutes pass two in the morning. I still had a hang over after over drinking with my friends at dinner. I answered the phone mistily, it was a girl, and she asked me whether I knew who she was.

我被自己手机铃声吵醒了，那是凌晨两点过几分，晚饭时和朋友喝多了，头还痛着呢，我迷迷糊糊地接电话，是个女孩子。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。