【摘要】 为支持工程设计中经常遇到的复杂数据结构及数据间的复杂联系，设计并实现了一个面向对象的工程数据库管理系统ＨＺＥＤＢ（ＨｕａｚｈｏｎｇＥｎｇｉｎｅｅｒｉｎｇＤａｔａｂａｓｅ）。介绍了该系统的建模语言、核心系统结构，并较详细地介绍了该系统的存储子系统的设计与实现方法。更多还原

【Abstract】 In otder to support the complex data structure and complex relationships between dataoften encountered in engineering design, an object-oriented engineering database manage-ment system HZEDB has been designed and realized. The modelling language of the systemand the structure of the key parts as well as the design and realization of the storage subsys-tem are described.更多还原