编译原理，逆波兰式。

编译原理转逆波兰式-compiler theory to reverse Polish

在MAXPLUX下实现8251串口通信功能-The MAXPLUX achieve 8251 serial communication

实现摄影测量中空间后方交会的问题，用以求得像片的内外方位元素-To achieve space resection in photogrammetry issues photograph to obtain the internal and external orientation elements

U盘Dos安装及引导文件（DOS+Grud供自制引导性U盘使用）-U disk Dos installation and boot files (DOS+ Grud for self-guided use of U disk)

FPGA-Xilinx 官方下载线，英文。入门必备！-FPGA-Xilinx Download the official line, in English. Entry required!

很好用的图书管理系统,大家都来试一下呀.kfahflkafulgvbahfgklajvbashgah-good use of library management system, We have to try something ah. kfahflkafulgvbahfgklajvbashgah

Sample MC55i circuit

c版本的，很不错的能运行，我也是从网络下的-c version, and very good can run, I am also from the network

有用的串口调试工具，希望对需要串口编程的朋友有所帮助。-A useful tool for serial port debugging

实用的二维动力射线追踪软件seis88最新版本，就是输入格式有点麻烦。非常适合模型正演。-Practical ray tracing of two-dimensional dynamic seis88 the latest version of software is a bit cumbersome input format. Very suitable for forward modeling.