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Search explanation


Home > Search Description Site Search

A search link is located in the left border of each page near the top of the page.  The link is colored red on this page.  Clicking on the link will take you to a page on which search queries can be entered. 

More refined queries can be formed from arbitrary Boolean expressions containing the keywords AND, OR, and NOT, and grouped with parentheses. For example:

information retrieval -finds documents containing 'information' or 'retrieval'

information or retrieval - same as above

information and retrieval - finds documents containing both 'information' and 'retrieval'

information not retrieval - finds documents containing 'information' but not 'retrieval'

(information not retrieval) and WAIS - finds documents containing 'WAIS', plus 'information' but not 'retrieval'

web* - finds documents containing words starting with 'web'

Information given herein is from sources considered reliable, but no guarantee of accuracy can be made or liability assumed.  Your supplier may be able to provide you with more precise data.  Certain compositions or processes involving perlite may be the subject of patents.
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