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在一些砂矿区[库克(Cook)和拉欧(Rao)]可见到细粒金、这里指的是通过65目筛或直径210微米以下的细颗粒金,在重选厂,砂金中的金粉常常被损失掉.
In some sand mines (Cook and Rao) fine grained gold is seen, which refers to fine grained gold passing through a 65-mesh screen or below 210 microns in diameter at a re-election plant, gold dust in the placer gold Often lost.