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introductory column |
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introductory column [¦in·trə¦dək·tə·rē ′käl·əm] (mining engineering) The highest and first column that is inserted in casing a borehole. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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