Arizona is the United States' largest source of copper, primarily mined from a type of ore body known as porphyry copper deposits.
亚利桑那州有美国最丰富的铜矿资源，主要从一种含铜的斑岩矿床(asporphyry copperdeposits)中开采。
Nuclear power is generated using uranium, a metal that is mined as an ore in large quantities, with Canada, Australia and Kazakhstan providing more than half of the world's supplies.
核能是通过铀这种大量开采的矿石金属生成的。加拿大、澳大利亚和哈萨克斯坦占据了全球超过半数的供应量。
Arizona is the United States' largest source of copper, primarily mined from a type of ore body known asporphyry copper deposits.
亚利桑那州有美国最丰富的铜矿资源，主要从一种含铜的斑岩矿床(asporphyry copperdeposits)中开采。
SMELTER: Some 3.8 million metric tons of lead are produced annually by separating it from mined ore using high heat.
熔炉：每年约有380万公吨的铅是通过高温加热矿石的方法分离制造出来的。
In the mining system which conveys ore by blasting force, the ratio of mined tonnage to development is low and the ore dilution and loss are less, leading to good cost effectiveness.
爆力运矿采矿法具有采切比小、矿石损失贫化少、 经济效益好等优点。
It mined its own coal, ore, limestone, fire-clay, and fire-stone, made its own coke, and owned 14 miles of railway to serve its works.
该公司自己开采煤炭、矿石石灰石、火黏土及黄铁矿，自行炼焦，并拥有14英里的配套铁路。
For example, some in this field might work with a mining engineer to coordinate the extraction process and extract the metal from the ore once it has been mined.
例如，从事这一领域的人可能与采矿工程师共同研究提取工艺，从矿石中提取金属。
Initially surface mined for copper and lead, an ore body was discovered that consisted of three oxidation zones extending more than a mile below the surface.
最初人们只是在表层开采铜矿和铅矿，后来在地表下发现了一个包含三条氧化带的矿体，绵延超过一英里。
The South ore-bearing zone of Wushan copper mine is mined with ascending horizontal slicing hydraulic fill crosscut mining system. Roof falling and rib spalling occurred in any times.
武山铜矿南矿带采用上向水平分层进路水砂充填法回采，采场多次发生冒顶、片帮。
The mined ore should be directly put into the smelting furnace.
一期工程要求矿石直接入炉冶炼。
From the model, the spatial distribution and the volume of the residual ore at the bottom can be accurately obtained and the ore amount in the mined cavity can be calculated.
以此为基础，建立采场底部存留矿石的三维实体模型，准确地获取存留矿石在采场底部的空间分布及体积大小，进而计算出存留在采空区中的矿量。
The stability of the ore pillar and the roof is a key issue in the pillar recovery in unfilled mined-out area.
在空区未充填的情况下回采矿柱，矿柱与采空区顶板的稳定性是一个关键问题。
Iron ore, as mined, contains varying quantities of impurities.
铁矿石从地下开采出来时具有不同含量的杂质。
The stability of the ore pillar and the roof is a key issue in the pillar recovery in unfilled mined - out area.
在空区末充填的情况下回采矿柱，矿柱与采空区顶板的稳定性是一个关键问题。
The stability of the ore pillar and the roof is a key issue in the pillar recovery in unfilled mined - out area.
在空区末充填的情况下回采矿柱，矿柱与采空区顶板的稳定性是一个关键问题。
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