| drilling |
The act of boring a hole (1) to determine whether minerals are present in commercially recoverable quantities and (2) to accomplish production of the minerals (including drilling to inject fluids). Exploratory. Drilling to locate probable mineral deposits or to establish the nature of geological structures; such wells may not be capable of production if minerals are discovered.
출처: www.noresco.com/site/content/info_glossary.asp
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| drilling |
This is a mechanical drill used to clean away any excess bacterial damage to the tooth and prepare a hole in the tooth to accept a filling.
출처: www.mosmandentist.com.au/main/terminology.htm
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| drilling |
the process by which a hole is bored into the earth, usually to find and remove subsurface formation fluids such as oil and gas
출처: www.careersinoilandgas.com/general/glossary.cfm
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| drilling |
holes in paper are drilled using metal bits rather than punched
출처: www.linnbenton.edu/printingservices/Glossary.html
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