| trepan |
a surgical instrument used to remove sections of bone from the skull a drill for cutting circular holes around a center cut a hole with a trepan, as in surgery
출처: wordnet.princeton.edu/perl/webwn
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| trepan |
Cutting a circular core out of a material for testing.
출처: www.peakagents.ca/glossary/t9.htm
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| trepanation |
trephination.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| trepan |
A tool used for boring and drilling Marbles and hard stones. It is rarely used since the invention of the wimble, which is much better suited to the purpose for which it was used.
출처: www.cagenweb.com/quarries/articles_and_books/marbl...
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