spec. Coal Mining. An explosive mixture of firedamp (methane) and air. Now chiefly historical.
| 单词 | θ75437 |
| 释义 | the world > matter > gas > [noun] > fumes or vapour > explosive gas in mines > fire-damp mixed with air (2) gas1816 spec. Coal Mining. An explosive mixture of firedamp (methane) and air. Now chiefly historical. sharp gas1886 In various technical collocations, as sharp lime, ? unslaked lime; sharp vat (Dyeing), a vat containing a considerable excess of lime (Ure Dict. Arts… |
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