홈 > Term: hand boring
hand boring
The drilling of holes by hand for site investigations or for the exploration of shallow mineral deposits. The hand drill is used for depths of about 15 m and where the ground is loose or not too hard. Compare: auger
- 품사: noun
- 분야/도메인: 광업
- 카테고리: 일반 광산; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)
