单词 | metal drift |
释义 | > as lemmasmetal drift metal drift n. Mining (now rare) a subterranean passage made in rock. ΚΠ 1883 W. S. Gresley Gloss. Terms Coal Mining 168 Metal drift, a heading driven in stone. 1964 A. Nelson Dict. Mining Metal drift, a drift or heading driven in barren and hard rock. < as lemmas |
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