For enriching the database system of special education with ideal retrieval function, the facet classification, post controlled retrieval and hyper chaining techniques are employed.
为了使特殊教育数据库系统具有较为理想的检索功能，本系统采用了分面分类技术、后控检索技术、超链接技术。
For enriching the database system of special education with ideal retrieval function, the facet classification, post controlled retrieval and hyper chaining techniques are employed.
为了使特殊教育数据库系统具有较为理想的检索功能，本系统采用了分面分类技术、后控检索技术、超链接技术。
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