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单词 coal-field
释义 ˈcoal-field
A series of strata containing coal occupying a particular area; the tract of country occupied by these strata.
1813Bakewell Introd. Geol. (1815) 177 The series of strata existing in one situation is denominated a coal field.1846McCulloch Acc. Brit. Empire (1854) I. 599 The coal⁓fields of Durham and Northumberland are adequate to furnish the present annual supply for more than 1340 years.
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