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GIS数据，基于DEM的中国流域shapefile，可直接使用(GIS data, shape file based on DEM in China watershed, can be used directly .)

jQuery石头剪刀布猜拳网页小游戏代码，一款随机选择剪刀，石头，布，来进行猜拳游戏代码，左侧是比赛结果统计。(JQuery stone scissors cloth guessing web game code, a random choice of scissors, stone, cloth, to guess the game code, the left side is the result of the game statistics.)

求解弹流润滑方程的程序，可以得到压力、膜厚分布(Solve the equation of the elastohydrodynamic equation and obtain the pressure and film thickness distribution)

说明：  逆波兰式计算器，支持加减乘除，乘方开方，三角函数，反三角函数，指数对数运算(Inverse Polish calculator, support addition, subtraction, multiplication and division, power square, trigonometric function, inverse trigonometric function, exponential logarithm operation)

Lecture basic excel in pdf

R语言用于多元回归树分析，适用高版本的R。(Multiple regression tree analysis in R language)

Perl是一门以处理文本和文件见长的语言。它是一门易上手，开发快速的工具。相对于其它的脚本语言，有不可比拟的优势。本书为Perl入门的比较好的书籍(Perl is a language known to handle text and file. It is an approachable, to develop a quick tool. Relative to other scripting language, has incomparable advantages. Good books for book entry for Perl)

基于MSRDS领航跟随法多机器人编队控制SPL代码(Based on MSRDS pilot to follow the method of multi-robot formation control SPL code)

在运筹学规划问题中，用matlab调用cvx的求解鲁棒问题的方法(In operation research programming, this method can be used to solve robust optimization)

很有参考价值的Windows CE嵌入式开发文档资料！英文原版！-of great reference value to the Windows CE Embedded Development Documentation! English original!