调查引擎探讨

On the Survey Engine

分析调查引擎的作用和特点,论述利用调查引擎进行网络调查的步骤和方法,指出使用调查引擎时需要注意的事项、存在的问题和具有的优势。

Analyzes the role and features of survey engines, discusses the steps and ways of making network investigation by using survey engines and points out the matters needing attention while using survey engines, the existing problems and advantages.