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供参考学习，互相交流用，有助于开拓视野，增加知识面。(For information, learn, communicate with each other, help to broaden their horizons and increase their knowledge.)

北斗系统空间信号接口控制文件正式版。北斗系统基本服务性能如下：位置精度：平面 10米、高程10米；测速精度每秒0.2米；授时精度单向50纳秒；可提供双向高精度授时和短报文通信服务。通过广域差分和地基增强等手段，北斗系统服务 性能还可进一步提高，满足各类用户需求。(Official version of the the Beidou system space signal Interface Control Document. The Beidou system performance are as follows: position accuracy: plane 10 meters, 10 m elevation velocity accuracy of 0.2 meters per second timing accuracy of the one-way 50 nanoseconds provide two-way high-precision timing and short message communication service. By means of wide area differential and ground-based augmentation Beidou system performance can be further improved to meet the needs of all types of users.)

麻省理工大学机器视觉的课程PPT2005年冬季学期(MIT machine vision seminars)

医疗器械注册管理办法 医疗器械行业相关法规和管理方法(Medical Device Registration)

VTK User Guide中文指导手册，全面详细介绍VTK，是一个不可多得的VTK学习资料。(VTK Chinese instruction manual, full details of VTK, VTK is a rare learning materials. )

C++ excercise 1 from IITU

教会你如何管理时间，让你的一分钟变成一个小时(dfsdfgfdsgfdsgdfsg)

说明：  学生学藉管理 系统：A simple student information management system.(Students through management system: A simple student information management system.)

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Omega系统软件，用于地震资料处理分析的Omega地震资料处理软件系统(Omega Software Learned)