lean ore

基本解释

Solution mining is a available method to extract gold from lean ore, relic, waste dumps and tailings.
溶浸采矿是从贫矿、残矿、废石堆、尾矿中提取金的一种行之有效的方法。
This paper introduced the experiments on the large grain size and high heap gold leaching of stripped lean ore from open pit mining of gaolong co.
介绍了高龙公司利用露采剥离贫矿进行大粒度、大堆高的堆浸提金试验。
In mining the extremely fractured thin ore body, the separation of waste rock in the conventional shrinkage stoping was replaced by the separation of the rich ore and retaining the lean ore.
对极破碎薄矿体的开采，采用了将常规的留矿法中分选废石改为分选富矿石留贫矿石的采矿方法。