A glacier next to a nearby zinc and lead mine has retreated since the site closed in 1990, exposing an outcrop of metal-rich ore, where drilling will start again soon.
一座铅锌矿在1990年关闭后，周围的冰川就不断缩小，暴露出金属含量丰富的矿石，因此钻井工作将会很快开始。
A major outbreak of lead poisoning in children has been occurring in Zamfara State, Nigeria since at least March 2010, related to the processing of lead-rich ore for the extraction of gold.
至少自2010年3月以来，尼日利亚扎姆法拉州就出现了儿童铅中毒大暴发，这与从含铅丰富的矿石中提取黄金有关。
The gold-rich ore bodies occurrs in the winding part of NNE-trending fractures on strike and transforming part from steeply dipping to gently dipping on dip direction.
富金矿体在走向上一般分布于NNE向断裂的转折地段，倾向上分布于断裂产状由陡变缓的过渡部位。
Manganese ore resources are rich in China, yet with fewer rich ores but more low-grade ores, complex ores and fine refractory ores. rich ore resources are in critical shortage presently.
在我国，锰矿资源虽然十分丰富，但富矿少，贫矿、复杂矿和细粒难选矿多，富矿资源目前严重短缺。
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。
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。
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