| 单词 | coal vein |
| 释义 | > as lemmascoal vein coal vein n. ΘΚΠ the world > the earth > minerals > mineral deposits > [noun] > stratum or bed > of coal coal bed1591 roach1653 coal measure1665 coal vein1665 main coal1708 coal seam1756 1665 D. Dudley Mettallum Martis sig. E4 The manner of the cole-veins, or measures in these parts. 1719 Philos. Trans. 1717–19 (Royal Soc.) 30 970 Next under the three Coal Veins is the Peaw Vein. 1833 Niles' Reg. 44 345/1 The singular spectacle of a coal vein on fire is to be seen in the neighborhood of Port Carbon. 1918 Economist 26 Oct. 586/1 Portrush is of import also, because of the exceedingly valuable coal veins cropping out almost on the surface. 2001 H. Johnson Trevelyan Trap i. 4 At the time of the explosion the gritty black coal veins of the Trevelyan Mine were being worked by the long-wall method. < as lemmas |
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