接口程序

Design the Route Fitting Program based on Cubic Spline and, output viewdata, interface with AUTOCAD program, built up vary layers with different color, directly plot the fig of route ichnography, slope and curvature.

运用VB设计开发基于三次样条曲线的路线拟合小程序，可视化输出上述数据结果，并与AUTOCAD程序接口，建立不同的图层及颜色，直接输出路线平面图、斜率图、曲率图。

A practical software development method based on monolithic microcomputer is presented in this paper, It suggests a new data transmission path way between IBM-PC microcomputer and JD-51 monolithic microcomputer by use of CENTRONICS printer parallel port of IBM-PC system and the printer interface of JD-51, It transmits the MCS-51 system machine code program assembled and edited in IBM-PC to JD-51 monolithic computer or transmission backword.

本文介绍了一种实用的单片双板机软件开发方法，该方法利用IBM—PC的CENTRONICS打印机并行口与JD—51单片双板机的打印机接口进行数据传输，把在IBM—PC机编辑汇编成的JD—51双板机的机器码程序传送给JD—51，阐述了该方法的技术原理及程序设计。

On the basis of the presented hydroelastic theory, a computer code HEAF (Hydroelastic Analysis Program for Fast Sea Transportations) is developed to calculate wave loads and dynamic responses of mono-or multi-hull high speed vessels in the frequency and time domain.

在理论研究的基础上，本文作者开发了计算机应用程序HEAF(Hydroelastic Analysis Programfor Fast Sea Transportations)，通过与结构干模态分析程序的数据接口，能够进行线性频域和非线性时域单体或多体高速船舶水弹性分析，可用以计算单体或多体高速船在各种海况下的波浪载荷、船体刚体运动和结构的弹性动力响应。

For human users to take full advantage of termin al in a computer network ,accessing a variety of heterogenous machines from one terminal is sometimes required.

任何类型的实终端或应用程序均与其建立标准接口，并且在扩充新类型的终端或应用程序时，只要增加一个新的映射即可。

Once you depend on interfaces only, you're decoupled from the implementation.

一旦程序功能只依赖于接口，你的程序就同具体实现分离开了。

This thesis mainly deals with the packet filter firewall by applicating Netfilter on the basis of Linux, consisting of seven parts: first, it generally describes the firewall; second, it introduces the exploiting platform Linux and the software debug environment; third, it simply analyzes some networking protocols; fourth, it analyzes the network attacks and their defensing measures; fifth, it describes the most important part of the thesis--the analysis of netfilter's frame and the exploiting and designing process of the firewall; sixth, it introduces the design of the device drivers of the Linux which is the theory base of exploting the user's interface ; the last part is the applicating guide of its exploiting process.

本文介绍了运用Netfilter防火墙技术，在LINUX环境上实现包过滤防火墙的方法和过程，在内容上主要包括了七个部分：第一部分对防火墙的概述；第二部分则介绍此次开发的平台LINUX和软调环境；第三部分对几种网络协议做了简单的分析；第四部分分析了网络攻击及其防御措施；第五部分则是本次设计的核心部分Netfilter框架分析以及防火墙的开发设计思路；第六部分则介绍LINUX设备驱动程序的设计，它是开发用户接口部分的理论基础；最后则是所开发程序的使用说明部分。

This thesis mainly deals with the packet filter firewall by applicating Netfilter on the basis of Linux, consisting of seven parts: first, it generally describes the firewall; second, it introduces the exploiting platform Linux and the software debug environment; third, it simply analyzes some networking protocols; fourth, it analyzes the network attacks and their defensing measures; fifth, it describes the most important part of the thesis--the analysis of netfilters frame and the exploiting and designing process of the firewall; sixth, it introduces the design of the device drivers of the Linux which is the theory base of exploting the users interface ; the last part is the applicating guide of its exploiting process.

本文介绍了运用Netfilter防火墙技术，在LINUX环境上实现包过滤防火墙的方法和过程，在内容上主要包括了7个部分：第1部分对防火墙的概述；第2部分则介绍此次开发的平台LINUX和软调环境；第3部分对几种网络协议做了简单的分析；第4部分分析了网络攻击及其防御措施；第5部分则是本次设计的核心部分Netfilter框架分析以及防火墙的开发设计思路；第6部分则介绍LINUX设备驱动程序的设计，它是开发用户接口部分的理论基础；最后则是所开发程序的使用说明部分。

This thesis mainly deals with the packet filter firewall by applicating Netfilter on the basis of Linux, consisting of seven parts: first, it generally describes the firewall; second, it introduces the exploiting platform Linux and the software debug environment; third, it simply analyzes some networking protocols; fourth, it analyzes the network attacks and their defensing measures; fifth, it describes the most important part of the thesis--the analysis of netfilters frame and the exploiting and designing process of the firewall; sixth, it introduces the design of the device drivers of the Linux which is the theory base of exploting the users interface ; the last part is the applicating guide of its exploiting process.

本文介绍了运用Netfilter防火墙技术，在LINUX环境上实现包过滤防火墙的方法和过程，在内容上主要包括了七个部分：第一部分对防火墙的概述；第二部分则介绍此次开发的平台LINUX和软调环境；第三部分对几种网络协议做了简单的分析；第四部分分析了网络攻击及其防御措施；第五部分则是本次设计的核心部分Netfilter框架分析以及防火墙的开发设计思路；第六部分则介绍LINUX设备驱动程序的设计，它是开发用户接口部分的理论基础；最后则是所开发程序的使用说明部分。

The ARM symbolic debugger is a front-end interface to assist in debugging programs running either under emulation or remotely on a target system such as the ARM development board.

ARM符号调试器是协助调试程序的前端接口。调试程序既可以在仿真环境下运行，又可以在远程的目标系统上运行。

Four 8-bit I/O Ports C Three 16-bit Timer/Counters C 256 Bytes Scratch Pad RAM C 8 Interrupt Sources with 4 Priority Levels C Dual Data Pointer Variable Length MOVX for Slow RAM/Peripherals High-speed Architecture C 10 to 40 MHz in Standard Mode 16K/32K Bytes On-Chip ROM Program T80C51RD2 ROMless Versions On-Chip 1024 bytes Expanded RAM C Software Selectable Size (0, 256, 512, 768, 1024 bytes) C 256 Bytes Selected at Reset for AT87C51RB2/RC2 Compatibility Keyboard Interrupt Interface on Port P1 8-bit Clock Prescaler 64K Program and Data Memory Spaces Improved X2 Mode with Independant Selection for CPU and Each Peripheral Programmable Counter Array 5 Channels with: C High-speed Output C Compare/Capture C Pulse Width Modulator C Watchdog Timer Capabilities Asynchronous Port Reset Full Duplex Enhanced UART Dedicated Baud Rate Generator for UART Low EMI Hardware Watchdog Timer (One-time Enabled with Reset-out) Power Control Modes C Idle Mode C Power-down Mode C Power-off Flag Power Supply: 2.7V to 5.5V or 2.7V to 3.6V Temperature Ranges: Commercial (0 to +70C) and Industrial (-40C to +85C) Packages: PDIL40, PLCC44, VQFP44

四8位I / O端口C款三16位定时器/计数器 256字节RAM的便笺簿 8中断源4优先级和C双数据指针MOVX在缓变长内存/外设高速架构为C 10至40 MHz的标准模式16K/32K字节的片上ROM程序T80C51RD2无ROM版本片1024字节扩展RAMC软件可选尺寸（0，256， 512，768，1024字节）C选取在重置为AT87C51RB2/RC2兼容键盘中断接口与独立的选择港口小一8位时钟分频器64K的程序和数据存储器空间的改进X2模式的CPU和256字节每个外设可编程计数器5通道的阵列：C型高速输出C比较/脉宽调制器捕获看门狗定时器复位功能异步端口全双工增强型UART的波特率发生器的UART低EMI硬件看门狗定时器电源控制模式空闲模式C掉电模式C断电旗电源：2.7V至5.5V或2.7V至3.6V温度范围：商业（0到+70 C）和工业（- 40C至+85℃）封装：PDIL40，PLCC44，VQFP44

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。