Coal Mining. A measure of coal, locally varying between 48 and 50 tons, being the unit of calculation on which the lessor's rent or royalty is…
单词 | θ210370 |
释义 | society > occupation and work > industry > mining > [noun] > measure of coal, etc. (4) ten1590 Coal Mining. A measure of coal, locally varying between 48 and 50 tons, being the unit of calculation on which the lessor's rent or royalty is… score1754 Coal Mining. (See quot. 1849.) overworkings1849 With singular agreement. Excess coal that has been worked from a mine above a specified annual limit. set1858 Miscellaneous technical senses. Mining. (See quots.) |
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