三级材料，可以参考。

关于谱估计方面的重要函数,能很好的估计出信号的谱,质量很高-on spectral estimation of the important functions can be a very good signal to estimate the spectrum of high quality

管理系统中计算机应用1998-Management System Computer Application 1998

LILO配置攻略-LILO configuration Raiders

Visual Basic 编程问答-Visual Basic programming quiz

The source code in a tutorial.

介绍OPC的相关资料，它是一个PPT文件。

著名仿真软件的教程-famous Simulation Software Directory

此为《Visual C++ 项目开发实用案例》书籍配套光盘，该书由“数据库查询工具”、“数据转换工具”、“图像处理系统”、“系统资源监测器”、“HTTP日志解析、分析系统”五个案例构成，光盘资料中提供了所有系统的源程序代码和相关文件。-as the "Visual C projects to develop practical case" books matching discs, from the book "database query tool", "data conversion tools", "Image Processing System", "systematic resource monitoring devices," "HTTP log analysis, analysis system" constitutes five cases, CD-ROM information system to provide all the source code and related documentation.

Visual C++ 6.0中文版语言参考手册 请使用wdl阅读器进行阅读-Chinese version 6.0 Language Reference Manual please use wdl reader for reading

JavaScript脚本语言大全，里面包含了100个实用脚本。学习，工作的好帮手。-Encyclopedia of JavaScript scripting language, which contains 100 practical script. Study, work a good helper.