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单词 flint-coal
释义

> as lemmas

flint-coal
flint-coal n. (see quot.).
ΘΚΠ
the world > the earth > minerals > types of mineral > hydrocarbon minerals > [noun] > coal > hard coal
hard coal1653
stone-coal1708
flint-coal1841
durain1919
1841 C. H. Hartshorne Salopia Antiqua 427 Flint Coal a coal measure so called, partly from its hardness, and partly from reposing upon a siliceous rock.
extracted from flintn.
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更新时间:2024/12/23 20:39:43