速达5000的数据库字典，物理模型，可用于研究和学习数据库结构用，另外对于想做速达5000软件二次开发的朋友是非常好的工具-Speed up to 5000 database dictionary, physical model, can be used for research and learning to use the database structure, wants to speed up to 5,000 additional software for the second dev