ホーム > Term: support
support
A general term for any timber, steel, concrete, brick, or stone structure erected to counteract the subsidence of the roof strata when undermined.
- スピーチの一部 noun
- 産業/ドメイン 炭鉱
- カテゴリ 炭鉱全般; Mineral mining
- Government Agency: USBM
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作成者
- ed.young
- 100% positive feedback
(Milwaukee, United States)