However, the full-text retrieval system can't extract and cluster the correlated historical material required. Because the system can only retrieve material through retrieval words matching.

但由于古籍全文数据库检索系统只能依照检索词匹配来进行检索，并不能解决抽取和聚集相关史实的问题。

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The ARTAS system itself is only used to extract the individual hair follicles under guidance of a doctor using computer imaging.

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