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单词 θ212927
释义
society > occupation and work > equipment > equipment for treating ores > [noun] > for separating ores from gangue (2)
washing-mill1728

†(a) a machine used for recovering particles of gold or silver from refuse matter; (b) a machine for washing cloth in the process of bleaching.

vanner1882

An apparatus for separating minerals from the gangue.

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更新时间:2025/1/11 17:18:17