홈 > Term: rubbing surface
rubbing surface
The total area of a given length of airway; i.e., the area of top, bottom, and sides added together, or the perimeter multiplied by the length.
- 품사: noun
- 분야/도메인: 광업
- 카테고리: 일반 광산; Mineral mining
- Government Agency: USBM
0
작성자
- ed.young
-
(V.I.P) 21084 포인트 - 100% positive feedback
(Milwaukee, United States)
