结构单元

This paper introduces the development process of wastewater disposal,its auto control system,the level of nowadays and several new techniques of China and foreign countries. The immanent structure,control rules,main features and design methods of auto control systems in wastewater disposal process are studied in this paper. Aiming at four typical parameters,such as temperature,dissolved oxygen,PH and the planes of water,the Distributed Control System is designed,composed by PC called epigyny computer and SCM 8098 called hypogyny computer,and some sensors,shift deliver utensils and related meet orifices of parameters gathering and figures communication. The idea and work processes of some program modules are also introduced here. The programs in epigyny computer include the program of mutual interface between operator and computer,figure disposal program and chart output program,which are exploited with Visual Basic 6.0. And the programs in hypogyny computer are composed by figure gathering program,the program of supervision and control of system,communication program and meet orifice program between assemble language and VB,which are designed with assemble language.

本文介绍了国内外污水处理及其自动控制系统的发展过程、当今水平和提高自动化程度的若干新技术；研究了污水处理自动控制系统的内在结构、控制规律、主要特点和设计方法；选取污水处理中的典型参数温度、溶解氧、PH值和液位等为控制对象，设计了以个人计算机为上位机、以8098单片机为下位机，并辅之以传感器、变送器及相关接口单元所构成的二级集散控制系统；介绍了几个主要程序模块的设计思路、工作过程，这些程序模块是：用高级语言Visual Basic6.0开发的上位机人机交互界面程序、数据处理和图表输出程序，用执行效率高的汇编语言开发的下位机数据采集与系统监控程序、上位机与下位机之间的数据通信程序，汇编语言与VB之间的转接程序，等等。

It has unique equilateral triangle cellular construction and its intensity of frame is strong.

特有的正三角形单元结构，骨架强度大

With experience gained from the Finite Element method, a quasi-linear model based on the Magnetic Equivalent Circuit method has been used to obtain the static torque of the motor. Three types of magnetic tubes are employed in the model, and through the exchange principle of magnetic lines of force and magnetic equipotential line, the tube in which the flux distribution is non-uniform is applied to the model.

通过分析电机二维磁场分布和考虑电机特殊的电磁结构，提出了用三种磁通管单元来近似磁场分布，并借用磁力线和等磁位线互换的方法，将磁力线分布不均匀的磁通管引入到分析模型中，有效的处理了平动式啮合电动机中的磁场分布不均匀和磁路局部饱和，使分析模型得到简化并兼顾了求解精度。

Element stiffness matrix and equivalent load matrix of structures with varying sections are derived by employing the principle of virtual work.

接着，本文利用虚功原理推导了变截面结构的单元刚度矩阵和等效荷载列阵。

Accomplishing system topological structure design, off-chip memory space was expanded, CAN bus and distributed control network was realized.

在系统拓扑结构设计的基础上，实现了DSP片外存储单元的扩展，实现了通过CAN总线与整车分布式控制网络的通讯。

Structured character and expansivity of the system and independability between substructure elements have been improved by effective encapsulation of the isolators, and object-oriented analysis idea and system solving strategy have been developed as a result.

通过对隔振器的有效封装，增加了系统的结构化特性和可扩展性以及子结构单元之间的独立性，从而形成了面向对象的系统分析方法和系统求解策略。

In this paper, for hierarchically organizing the video structure, a method for extracting story units is proposed.

提出了一种新的层次化的结构化组织视频数据的提取故事单元的方法。

Figuration and work principle of this control system,and to single control node, its hardware constitution and software implement are ex-plained in detail. Communication protocol of

制系统的设计，给出了控制系统的整体结构和系统工作原理，同时对单个控制节点单元硬件组成以及软件实现作了详细说明，并且设计

The core subject of such building blocks such as figure of merit,possible circuit schematics and others are presented.

对各单元模块在设计中的技术指标，可能采用的电路结构以及应该注意的问题进行了讨论。

The finite element motion equation of the damped blades is obtained.

接着建立了叶片型线部分有限元模型，阻尼结构的有限元模型，阻尼连接单元的有限元模型，在此基础上建立了阻尼叶片的有限元运动方程。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。