。通过对领域本体的构建，实现了服务过程所涉及知识的逻辑结构与具体内容的全面语义描述和

后台并联。构建了基于本体的产品服务知识管理系统，该系统能实现产品服务活动案例所涉及知识的

获取和重用，满足知识源于服务活动，又重用于服务活动的循环。最后以某航空发动机非计划维修服务为例，验证了该知识表示方法的有效性。-building．An ontology— based knowledge representation fr a mework was devel—

oped for the reuse of knowledge unambiguously，which realized the knowledge originated　the

service process and served service process．An initial attempt was made to prove the feasibility of the

knowledge representation by example of aircraft engine unscheduled maintenance．