You can then refine search results by using search scopes, and by defining membership to the search scope with scope rules.

接着，我们还可以使用搜索范围来细化搜索结果，并通过范围规则来定义范围中的成员。

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Learning machine: Bing lets users refine search results (top), producing images that better match a search term (middle). New searches will then produce better initial results (bottom).

机器学习：必应让用户改善了搜索结果(顶)，产生了更好的匹配图片(中)，最新的搜索结果已经可以产生更好的首次体验了(底)。

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The default value (32) will be large enough for most users, because they will probably refine their search term before running out of results.

对于大多数用户而言，缺省值 (32) 将足够大，因为可能会在结果数超过此值前对搜索条件进行细化。

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The fact that Google dominates the search business just reflects the economies of scale that come from processing billions of consumer information requests a day and using those queries to better refine search results.

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Last January, Wikipedia founder Jimmy Wales launched a search engine called Wikia Search, a purported "Google-killer" that aimed to edit and refine search results with the same methods that have made Wikipedia a Web phenomenon--the contributions of thousands of volunteers.

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You can refine your search using the tools on the right-hand side of the page.

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