low-grade ore的例句大全

Recovery of Wolfram from Low-grade Ore in Stringer Vein

用浮选工艺回收低品位细脉型黑白钨矿的试验研究

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experimental research on cyanidation processes of low-grade ore containing arsenic, stibium and carbon

含砷锑碳低品位难浸金矿石氰化浸出工艺试验研究

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Gold extraction research by heap leaching from low-grade ore

低品位金矿堆浸法提金研究

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lateritic-nickel-ore is a form of heterogeneous low-grade ore which is derived from extremely thin clay materials and rock chips.

红土镍矿是由非常细的粘土物质和大小不等的岩石碎片经长年氧化而形成的一种不均匀的低品位矿。

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Using methods of cost-benefit comparision, marginal analysis, sinking cost analysis and opportunity cost, and combining the long-term average trend of mineral product price and production cost, a cut-off grade economical analysis model for the mine low-grade ore utilization is established.

综合地运用成本收益比较法、边际分析法、沉没成本分析法和机会成本法，结合矿产品价格和生产成本的长期平均趋势，建立了矿山低品位矿利用的临界品位的经济分析模型。

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se is a kind of scarce and scatter element, and it is very low-grade ore in mineral.

硒是一种稀少而又分散的元素，矿石中其品位一般都很低。

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extraction and utilization of the low-grade ore and construction of ecological environment in sustainable development of zijinshan gold mine

紫金山金矿可持续发展中低品位资源开发利用和生态环境建设

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a research on dressing process optimization of low-grade ore in zijinshan gold mine

紫金山金矿低品位矿石选矿工艺优化研究

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design practice in treating low-grade copper ore with extractive technology

萃取技术处理低品位铜矿的设计实践

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This is not always true-as with the manufacture of pig iron and steel from low-grade iron ores-but it did lead to the concentration of industrial developments on the coal fields.

并非一概如此 — 例如从低级铁矿石中生产生铁和钢材的情况一但是这导致了工业发展集中在煤田上.

《用法词典》

But they sold high-grade resources to big investors and stopped prospecting , leaving low-grade gold ore unused.

他们常常把高品位的资源卖给大投资商, 却置 低品位 的金矿石而不顾,让它荒弃掉.

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The in-situ underground leaching of low-grade copper ore is a new technology of extraction ore resources.

难采难选 低品位 氧化铜矿就地破碎浸出技术是一项崭新的资源回收综合技术.

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Research on Preparation of Chemical Manganese Dioxide for Alkaline Zn-Mn Battery from a Low-grade Manganese Carbonate Ore

贫菱锰矿合成碱锰电池级化学二氧化锰研究

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The iron ore tested is low-grade high-oxidized magnetite that cannot be well beneficiated through mono-magnetic separation.

本次试验研究的铁矿石属于贫磁高氧化矿石,针对矿石性质采用单一磁选流程难以获得高质量的精矿.

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study on heap leaching of low-grade zinc oxide ore

低品位氧化锌矿堆浸实验研究

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Development& practical use of technology of low-grade iron ore resource utilization

低品位铁矿资源利用技术的发展与实践

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Mineral processing technology study on a low-grade iron ore in Hebei

河北某低品位铁矿选矿工艺流程研究

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Experiment Research on Separation Technology for a Low-grade Fine Particle Magnetite Ore in Inner Mongolia

内蒙古某细粒低品位磁铁矿选别工艺研究

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A variety of chert containing magnetite and hematite; mined as a low-grade iron ore.

一种含磁铁矿和赤铁矿的燧石，作为一种低等的铁矿石被开采。

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investigation on improving fragment of low-grade copper-nickel deposits for stope leaching of broken ore

改善原地溶浸工艺中矿石破碎质量的力学机理

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