| 单词 | flat-sheets |
| 释义 | > as lemmasflat-sheets flat-sheets n. plural (a) Mining (see quots.); (b) Geology and Mining ‘thin beds, flat veins, or blanket veins or deposits of some mineral usually different from the adjacent layers; often contact-deposits’ ( Standard Dict.). ΚΠ 1869 R. B. Smyth Gold Fields Victoria 611 Flat-sheets, sheet iron flooring at the brace and in the plats and junction of drives to facilitate the turning and management of trucks. 1892 R. O. Heslop Northumberland Words Flat sheets, smooth iron plates laid over an even floor at a pit bank, on which the tubs are run to be emptied or returned to the cage. < as lemmas |
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