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vocabulary control 詞匯控制。

vocabulary entry

Based on discussing the necessity of vocabulary control , this paper mainly analyzes the measures , characteristics and presents new techniques of vocabulary control in natural language retrieval 摘要本文綜述了自然語言檢索中詞匯控制的必要性、措施,在此基礎上分析了自然語言檢索的特點及發展的新趨勢。

The issn key title and number are vocabularies controlled by the issn international centre Issn識別題名和號碼是由issn國際中心( issn international centre )控制的詞匯表。