分析中文搜索引擎的现状和特点，探讨其检索方法和策略。
Discusses the conditions of Chinese search engines in Internet and their search strategy.
方法：根据检索策略搜索文献，然后按照纳入排除标准筛选文献，并用文献定量分类表提取相关信息进行描述性统计分析。
Methods: This literature research searched for literatures using the search strategy and screened literatures according to inclusion and excluding criteria.
分析了搜索引擎在查全率与查准率方面存在的局限性，提出了提高搜索引擎检索准确率的策略。
This paper analyzes the limitation of search engines in the recall and precision, and advances some tactics for increasing the retrieval precision of search engines.
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