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单词 sill-coal
释义

> as lemmas

sill-coal
a. A kind of clay found in coal-measures. Also attributive, as sill-coal, sill-pencil.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > clay > [noun] > in coal measures
clunch1686
soap-scale1704
sill1774
poundstone1799
clunch-clay1815
blond-metal1831
1774 Philos. Trans. (Royal Soc.) 64 491 A shining kind of stony clay, called by the miners sill, lying in large beds in coal grounds.
1841 C. H. Hartshorne Salopia Antiqua Gloss. Sill-coal, coal which my informant describes as being found ‘in the clunches’.
1899 E. W. Prevost Dickinson's Gloss. Words & Phrases Cumberland (new ed.) Sill, the soft clay of the coal measures, used for slate pencils, which are called sill pencils.
extracted from silln.1
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更新时间:2024/12/24 12:48:16