Free text retrieval (full text retrieval) systems locate records based on searching their content.
不限格式的内文检索(全文检索)系统是基于内容搜寻而找出档案。
The problems related to full-text retrieval systems are explored, with emphasis on some approaches or techniques for the retrieval.
论文对全文文献检索系统加以探讨，重点讨论检索的方法和技术的实现。
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