Search Enginer is an integrated system in multi-technologies. The key point to estimate search Engine is how to refer the celerity and nicety search results for users.

搜索引擎是一个集多种技术于一体的综合性系统，如何将查询结果快速、准确地提交给用户是评价搜索引擎优劣的一个重要因素。