搜索引擎一个重要部分是网络爬虫程序，依靠网络爬虫，搜索引擎可以获取用来检索的原材料信息。
One of the most important parts of search engine is WebCrawler which can get the original information from network for the search engine.
每个搜索引擎都有自己爬行网页的自动化程序，叫做“网络蜘蛛（web spider）”或“网络爬虫（web crawler）”。
Each search engine has its own automated program called a "web spider" or "web crawler" that crawls the web.
一个网站爬虫是设计在整个一个网络站点跟随超连接的一个软件程序，检索并且索引页记录为寻找目的地点。
A website crawler is a software program designed to follow hyperlinks throughout a web site, retrieving and indexing pages to document the site for searching purposes.
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