Coal Mining. In singular or (more usually) plural. Loose material at the side of a working or excavation that is likely to fall.
| 单词 | θ215476 |
| 释义 | society > occupation and work > materials > raw material > mineral material > ore > [noun] > residuum after ore is extracted (2) side-waver1849 Coal Mining. In singular or (more usually) plural. Loose material at the side of a working or excavation that is likely to fall. tailings1864 plural. A name for the inferior qualities, leavings, or residue of any product; foots, bottoms. Mining. The residuum after most of the valuable… |
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