홈 > Term: pounceon
pounceon
Wales. Underclay. Apparently a survival of the obsolete form of puncheon (punchin)--a supporting timber in a coal mine or in a building floor timber. Also spelled pounson.
- 품사: noun
- 분야/도메인: 광업
- 카테고리: 일반 광산; Mineral mining
- Government Agency: USBM
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