The technical key to the dynamic optimization study of the rational mill feed grade of metal mines is the establishment of various mathematical models.

金属矿山合理入选品位动态优化研究的技术关键是建立各种数学模型。

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While we focused on waste removal, our ore release from the open pit suffered and we dipped into our lower-grade stockpile to feed the mill.

FORBES: Pan American 3Q Silver Output Lifted By Newly Acquired Dolores Mine; Adjusted Earnings Fall