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本文简单介绍SURFER绘图软件的功能特点，以及借助其等值线绘制软件系统制作区域降雨量等值线图的方法。-paper simply introduces SURFER mapping software functions. and through its contour mapping software system produced regional rainfall contour map.

JAVA编程项目BBS需求分析报告，用于设计系统-JAVA Programming Projects BBS needs analysis reports for the design of the system

The development of a data acquisition card based on USB bus is introduced in this article.It first describes the configuration and principle of this card in the part of hardware design,and then the application program and device driver in the part of software design.Data acquisition program in firmware is also discussed.Finally,this data acquisition card is tested and evaluated in a program developed by Lab Windows CVI,which shows that this car is stable and reliable

厦门亿宝大厦PHS室内覆盖系统设计-Xiamen billion-building PHS indoor coverage system design

Relay driving basics you can use it as a good reference

一个电机的接线图,不过还是不错的啊,步进电机四线接法.-A motor wiring diagram, but still ah good, stepping motor four-wire connection.

< AVR_U盘嵌入式FAT文件系统> 文件介绍了AVR Memory Stick嵌入式中实现类似操作系统的FAT文件管理系统，这些内容主要包括，文件系统的命名规范，文件寻址路径规范，文件系统核心数据结构的定义，文件系统读写类函数原型的定义。- document describes embedded AVR Memory Stick to achieve a similar operating system FAT file management systems, which mainly include the file system naming convention, document addressing the path specification, file system core data structure the definition of the file system functions to read and write the definition of the prototype.

一个利用mapx和vc开发车载定位系统的研究，文中详细介绍了车载系统设计方案及mapx相关函数的介绍-A use of MapX and vc-board positioning system to develop research, the article detailed the design of automotive systems and MapX correlation function introduced

一个基于485总线的抢答器系统的设计文档，参加电子竞赛的论文。-based on a 485 bus Responder system design documentation, to participate in the electronic race theses.