홈 > Term: echelon pattern
echelon pattern
A delay pattern that causes the true burden, at the time of detonation, to be formed at an oblique angle from the original free face.
- 품사: noun
- 분야/도메인: 광업
- 카테고리: 일반 광산; Mineral mining
- Government Agency: USBM
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- ed.young
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