单词 | guiding-bed |
释义 | > as lemmasguiding-bed guiding-bed n. Coal Mining (see quot. 1883). ΚΠ 1883 W. S. Gresley Gloss. Terms Coal Mining Guiding Bed, a thin band or seam of coal, &c., in a nip leading to the regular seam on either side of it. < as lemmas |
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