Referral Web uses a general full Web indexing engine (currently AltaVista) to match individuals to topic areas.

提名网用户使用一个常规的完整的网络索引引擎去匹配用户的主题区域。

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The template component has a property of type IndexFactory, a descendent of the indexing engine, which can saturate it.

模板组件有一个 IndexFactory 类型的属性，该属性是索引引擎的派生物，可能会因索引引擎而满负荷。

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The highly optimized implementation decreases the customization flexibility of Lucene but provides a very fast indexing engine.

高度优化的实现降低了Lucene的自定义灵活性，但是提供了一个速度非常快的索引引擎。

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That long tail includes about a hundred databases of specialized information that the search engine is now working on indexing, such as the Security and Exchange Commission's online filings and the online collection of medical journals known as PubMed.

FORBES: Magazine Article