Mining. ‘The operation of collecting all the valuable product of a given period or operation in a stamp mill, or in a hydraulic or placer mine’…
单词 | θ210348 |
释义 | society > occupation and work > industry > mining > [noun] > collecting together valuable product (1) clean-up1866 Mining. ‘The operation of collecting all the valuable product of a given period or operation in a stamp mill, or in a hydraulic or placer mine’… |
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