存贮和检索载体如果使用计算机检索,其中有一部分使用控制词标引,那么至少还有一部分索引词完全可能从文献中抽取。假如这一点完全可能,则用作抽词的标引材料源也完全可能全部成为机器存贮记录。如果记录容量很大,例如全文记录,那么还可以视需要至少在某些索引词记录中附加出现频率或其他信息,以便增加检索的灵活性。抽词索引的客观选择方法(词典或禁用词表)完全可能应用于机器存贮形式,而人工选 Storage and retrieval vectors, if retrieved using a computer and some of them are indexed by control words, may be at least partially extracted from the literature. If this is entirely possible, then it is quite possible that all sources of indexing material used as catchy words will all be machine-stored records. If you have a large recording capacity, such as full-text records, you can also append frequency of occurrence or other information to at least some of the indexed word records, if necessary, in order to increase search flexibility. The objective selection method (thesaurus or the banned word list) of the word-of-the-draw index is entirely possible to be used in the form of machine storage, while the artificial selection