Second, the applications of case-based design in mechanical design field are discussed and many key techniques about case-based design are studied, including case representation, case retrieval, case adaptation and case maintenance.

• 其次，本文讨论了基于实例的设计在机械领域中的应用，着重研究了其中的实例表示、实例检索、实例修改和实例存储的关键技术。