홈 > Term: trumpeting
trumpeting
Eng. A channel or passage partitioned off from a shaft or left behind the lining, usually running along one corner of the latter. Used for ventilation.
- 품사: noun
- 분야/도메인: 광업
- 카테고리: 일반 광산; Mineral mining
- Government Agency: USBM
0
작성자
- ed.young
- 100% positive feedback
(Milwaukee, United States)