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leading heading |
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leading heading [′lēd·iŋ ′hed·iŋ] (mining engineering) The heading of a pair of parallel headings that is a short distance in front of the other; used to drain a mining area. A heading dug into the solid coal before the advance of the general face. 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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