Repetitive search terms and frequency of search.

反复搜寻字词和频率搜索。

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You can choose to have search results for any term you enter sent to an E-mail address of your choice. Any updates to the search results will then be e-mailed to you at the frequency you specify.

任何时期只要你写下邮箱地址就可以得到你选择的时期的相关结果，任何搜寻结果的更新都会按照你特定的接收频率发送到你邮箱里。

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We’re totally hooked on Google’s new book search tool, which lets you search and graph the frequency of words in millions of books from 1800 to today.

Google的书籍词频统计器简直叫人着迷，它可以搜索成千上万书籍关键“词”的使用频率——从1800年到今天，然后生成一个图表。

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By removing barriers and friction, always-on devices increase the incidence and frequency of local search, at home as well as on the go.

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And in healthcare, hospitals are adjusting emergency room staffing levels based on the frequency and proximity of key words in search engines (e.g. flu symptoms).

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Executives have said they will work with search engines to limit the frequency of such visits so readers can't game the system.

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