以医学领域的预防医学为例,研究语义网格环境下数字图书馆领域本体的构建与应用;以医用叙词表MeSH为例,探讨以医用叙词表为基础构建医学领域本体的必要性,阐述预防医学本体构建的流程,包括本体构建工具、本体构建方法,尝试进行医用叙词表到领域本体的转换研究,并利用Racer推理机对此领域本体进行初步的推理应用研究。 Taking preventive medicine in the medical field as an example, this paper studies the construction and application of ontology in the digital library in the semantic grid environment. Taking the medical thesaurus MeSH as an example, this paper discusses the necessity of constructing ontology in the medical field based on medical thesaurus, The process of constructing ontology ontology is described, including ontology building tools, ontology building methods, attempting to translate medical thesaurus into domain ontology, and using Racer inference engine to make preliminary inference application research on this domain ontology.