系统的

The paper defines some command codings which are used to make communication between the system and a computer and it also describes how to construct a system based on the PIC MCU , design the application software and drive software for hardware.

使用 PIC 芯片实现系统的硬件构架，定义了计算机与系统之间进行通信使用的命令编码，设计了系统应用软件和硬件接口驱动程序。

At the same time, according to seting network requirement of ShanXi YuLin City Fire Command Certer, this paper makes a comparison between the advantage and shortcoming for the every kind of seting network.and emphasis discusses the type of system structure, network level of structure, system total plan, ceneric cabling, network equipment choice etc.

重点论述了系统的结构选型、网络层次结构、系统总体设计、综合布线系统、设备选型等。同时，本文还比较详细讨论了榆林消防支队与西安市消防支队远程网络互联问题，提出了用Internet公网和VPN技术相结合的解决方案。

Through analyzing report forms format of IEC 60 870-5104 stipulation,as well as considering computer monitoring system of 330kV Dashimen and Jingyang substation and experiences of provincial dispatching system,the paper studies some command flow,and provides technical safeguard for provincial dispatching automation system adopting network stipulations transmission process.

通过分析IEC 60 870-5-104规约的报文格式，借鉴330 kV景阳变、大石门变计算机监控系统和省调自动化系统的联调经验，研究了规约的各种命令流程，为省调自动化系统采用网络规约传输提供了技术保障，同时也极大地丰富了调度自动化系统的应用范围。

Based on similarity science and complex systems theory, this paper studies the principle of diversity analysis for complex mechanical products system. Based on similarity measure, diversity measure method of parts unit and complex machine is presented.

基于相似性科学和复杂系统理论，研究了复杂机械产品系统差异性分析原理，提出了以相似性度量为基础的零部件单元和复杂机械产品系统的差异性度量方法。

Using"Simulation Software Bus "to realize a composable mode of simulation software component to construct DIS system, to promote the interoperability and reusability of DIS systems, and to increase the flexibility and scalability of constructing DIS systems.

使用"仿真软件总线"来实现以仿真构件组合模式来构造分布交互仿真系统，提高仿真系统的互操作性和可重用性，增加系统构造的灵活性和可量测性。

On this foundation, undertook to coefficient of forestry system capital and relevant index further computative, compare and analyse, aim to hold economy of Chinese forestry system basically to grow state and industrial characteristic, the economic growth that studies Chinese forestry system for development and development problem provide beneficial policy basis.

在此基础上，进一步对林业系统资本系数及相关指标进行了推算、比较和分析，旨在基本把握中国林业系统经济增长状况和产业特点，并为深入研究中国林业系统的经济增长与发展问题提供有益的政策依据。

To meet the needs of CAD/CAPP concurrent designing in Computer Aided Concurrent Engineering. This paper investigates the key of integration system designing. The representation scheme for defining and operating form feature based on manufacture, the protrusion form feature exchanging and the UI of the system with a manufacture enviroment are presented. And also an OODM—UIMS developed by the author is introduced. The concurrent design of CAD/CAPP is the bottleneck in integrating process.

本文根据并行工程的要求，从构造基于并行、面向特征的CAD/CAM集成系统的思想出发，对系统的模式设计、基于加工的零件参数化特征描述、凸起形状特征的转换处理及具有加工环境的系统交互界面及面向对象的交互界面管理系统的设计与开发等关键技术进行了深入的研究，形成了系统的思想理论和方法。

This text pressed an on trial pedestal each zero partses to carry on a detailed calculation and the school pit to the liquid in introducing the background of the topic research and the foundation of the meaning:Pass to draw up towards experimenting the pedestal system principle diagram, explain the work principle of the system and manipulate a method;Pass the calculation to the system pressure,discharge, choose the oil pump,pipeline and valve door;Pass the calculation to deliver the calories to system, make sure the physical volume of the fuel tank and choose heating apparatus with spread a hot machine;Pass to spread a design of move the system to the pump station, choose to keep the strength that the gear cone wheel gear spread to move to combine a school to check stalk.

本文在介绍课题研究的背景及意义的基础上，对液压试验台各零部件进行了详细的计算和校核：通过对试验台系统原理图的拟订，说明了系统的工作原理和操纵方法；通过对系统压力、流量的计算，选择了油泵、油管和阀门；通过对系统发热量的计算，确定了油箱的体积并选择了加热器和散热器；通过对泵站传动系统的设计，选择了直齿圆锥齿轮传动并校核了轴的强度。

This text pressed an on trial pedestal each zero partses to carryon a detailed calculation and the school pit to the liquid inintroducing the background of the topic research and the foundationof the meaning:Pass to draw up towards experimenting the pedestalsystem principle diagram, explain the work principle of the systemand manipulate a method;Pass the calculation to the systempressure,discharge, choose the oil pump,pipeline and valvedoor;Pass the calculation to deliver the calories to system, makesure the physical volume of the fuel tank and choose heatingapparatus with spread a hot machine;Pass to spread a design of movethe system to the pump station, choose to keep the strength thatthe gear cone wheel gear spread to move to combine a school tocheck stalk.

本文在介绍课题研究的背景及意义的基础上，对液压试验台各零部件进行了详细的计算和校核：通过对试验台系统原理图的拟订，说明了系统的工作原理和操纵方法；通过对系统压力、流量的计算，选择了油泵、油管和阀门；通过对系统发热量的计算，确定了油箱的体积并选择了加热器和散热器；通过对泵站传动系统的设计，选择了直齿圆锥齿轮传动并校核了轴的强度。

In view of the fact that the complicated power electronic and electric machine system has multiple nonlineerand simulating tests are difficult and costly, the paper analyzes the configuration of the complicated power electronic and electric machine system, studies the model and simulation methods of each section and according to its section complexity, proposes the method of the modeling and simulation method of modeling separately and simulating connectedly to combine the circuit simulation method with the system simulation method.

针对复杂的电力电子电机系统通常具有多个非线性环节，且实验模拟测试困难费用昂贵等问题，采用仿真方法，通过分析复杂电力电子电机系统的结构，并根据其结构特点，研究了其各组成部分的建模与仿真方法，提出了根据各子系统复杂程度单独建模、再从系统角度把电路仿真和系统仿真结合起来联合仿真的仿真研究方法。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐