Lead Mine supply reduces greatly in recent years while demand is still strong, so secondary lead production involves for balancing market.

由于近几年铅矿供应大大减少，而需求却依然旺盛，需要二次铅的生产也参与进来以平衡供应。

youdao

The ore is lead mine of partial oxidation, the lead ore consists chiefly of galena and cerusite. 39% of cerusite is the most oxid in lead ore.

所处理矿石为半氧化铅矿石，矿石中铅以方铅矿和白铅矿形式产出，铅的氧化物主要为白铅矿，分布率达39%。

youdao

The existing problems of the tailings and waste residue in Yunnan Lancang Lead Mine have been described, and the feasible disposal methods have been introduced.

阐述了云南澜沧铅矿尾矿和废渣存在的一些问题，提出了切实可行的处理办法。

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"Mine That Bird has come now to take the lead as they come down to the finish.

VOA: standard.2009.12.24

Silver is actually a by-product of the gold and lead mining, there are few, if any, active mines that mine only silver.

FORBES: Looks Like I Picked The Wrong Week To Be A Silver Ultra Bull

Anglo American Platinum has said it will cease production at four mine shafts in the Rustenburg region of South Africa, which could lead to the loss of almost 14, 000 jobs.

BBC: South African miner Amplats closes shafts and cuts jobs

Earlier this month, Anglo American Platinum said it would cease production at four mine shafts in the Rustenburg region of South Africa, which could lead to the loss of almost 14, 000 jobs.

BBC: Anglo American in platinum production slump