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单词 day-coal
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day-coal
day-coal n. Mining Obsolete rare the coal or seam of coal that is the most superficial in a mine or closest to its entrance; cf. sense 23.
ΚΠ
1676 D. L. Hodgson in Philos. Trans. (Royal Soc.) 11 762 It [sc. fire] increaseth or decreaseth according to the subject it feedeth on; which is for the most part a Day-coal, as they call it, so that you may light a candle at it in some places, in other places it is some fathoms deep, according as the Day-coal heightens or deepens.
1839 London Encycl. VII. 81/1 Day coal, in natural history, a name given by the miners of England, and the people who live in coal countries, to that seam or stratum of the coal with lies uppermost in the earth.
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更新时间:2025/2/24 10:25:24