The working or mining of coal.
| 单词 | θ210313 |
| 释义 | society > occupation and work > industry > mining > [noun] > for coal (14) coal-working1708 The working or mining of coal. colliery1708 The working of a coal-mine. Obsolete. coal mining1784 The action, practice, or occupation of digging for coal. Subcategories:— types of (10) — coal-mining industry (1) |
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