Grade of ore formed from marble is higher, that formed from amphibolite is lower.
以大理岩为原岩的矿石品质优良，以斜长角闪岩为原岩的矿石品级较低。
Mill grade of ore, recoveries and tailing grade are very correlative during dressing processes.
在选矿过程中，矿石的原矿品位、回收率、尾矿品位三者是密切相关的。
Based on the technical and economical index, an optimal decision for the cutoff grade of ore drawing is presented.
在获取矿石技术经济指标的基础上，对截止放矿品位进行了优选政策。
It is recommended that minimum industrial grade and average grade of ore deposit in commercial factors can be canceled in order to suit for these two new standards.
附带建议在矿产工业指标中取消最低工业品位和矿床平均品位以与上述两个新标准接轨。
He also knows that big mining companies prefer mountains of low-grade ore to small, high-grade mines like his.
而且他也知道那些个大型矿产公司更喜欢那些低地势的矿山，而不是他那又小又高的。
Sims says measurements of the grade, mineral matrix, and size of the ore deposit appear favorable to commercial extraction.
希姆斯说对矿品位、矿母及矿床大小的测量对商业提取显得十分有益。
Another underlying cause has been the drop in global spot prices and freight rates, which has driven many domestic miners of lower grade ore out of business.
另一个根本原因是全球铁矿石现价和海运费的降低，导致很多国内出产低品质铁矿石的矿厂歇业。
Sharp grade cutoffs are the rule at margins of ore bodies.
品位的急剧下降是矿体边界上的规律。
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。
Rutile resource is rich in our country, but rutile ore grade is low and the product is poor competitive because of its high production cost.
我国天然金红石资源储量较大，但绝大部分为低品位的原生矿石，所以加工成本高，产品缺乏市场竞争力。
The paper introduces the research of mineral processing test of some low-grade copper oxide ore in Yunnan.
本文主要针对云南某地低品位氧化铜矿样进行了选矿试验研究。
Sulfuric acid leaching of low grade zinc oxide ore is studied in this paper.
研究了高硅低品位氧化锌矿的硫酸浸出工艺。
This process is a good example and also a feasible way for other similar mines with same problems of low grade ore and diluted resources to follow.
该流程对我国类似资源贫化型矿山低品位矿石的预选，具有较好的借鉴作用。
The oxidized ore with a lower grade of gold contains a little sulfide.
某低品位氧化型金矿石含有少量硫化物。
It is effectively on accelerating leaching speed of copper sulfide and increasing leaching rate of copper that bacteria ACTS on low grade copper sulfide ore.
利用细菌的作用对低品位硫化铜矿石进行浸出，能有效地促进硫化铜矿物中铜的浸出，提高铜浸出率。
In line with the features of accumulative bauxite ore, it is put forward and proved that it is an economically efficient way to solve the utilization of low grade accumulative bauxite by ore blending.
结合堆积型铝土矿的特点，提出并论证了通过配矿方式解决低品位堆积型铝土矿的利用问题是经济合理的办法。
From production practice of the mine, it is expounded that the decrease of dilution factor in mining is one of effective methods to improve the ore quality (grade) and economic benefits.
从生产实践出发，阐述了降低采矿贫化率是提高矿石质量(品位)，提高矿山经济效益的有效途径之一。
It is concluded that location of foot-wall drawing points are closely related to orebody dip, cut-off grade and ore grade of wall rock.
认为下盘放矿点位置与矿体倾角、放矿截止品位、围岩含矿品位有着密切的关系。
The high purity manganese carbonate is prepared by the process of leaching, removing impurities and crystallizing from Guangxi's low grade manganese ore.
采用广西某地低品位碳酸锰矿为原料，以硫酸浸出、浸出液除杂、碳化结晶工艺制备得到高纯碳酸锰产品。
After the final statistical distribution grade sample valuations, the frequency of ore amount of industrial index proportion.
统计出了估值后样品品位分布频数，得出了工业指标下的矿量比例。
Some problems such as points of ore supply were more, grade changed large and transportation by using operation research were solved.
运用运筹学原理解决了供矿点多、品位变化大及优化运输等问题。
This article describes in detail different ways of treating low grade Manganese ore.
本文就处理低品位锰矿的各种方法进行叙述。
In order to obtain an efficient extraction to mineral resources, a method with sufficient accuracy for estimating the grade and tonnage of ore reserve is required.
有效地开采矿物资源需要对赋存的品位及矿量有一准确的估计。
The formula of sintering ore burden is essential to raising its grade and to reducing the harmful elements.
烧结矿的配比对提高烧结矿的品位和降低有害元素的含量至关重要。
This paper describes the structure and properties of realgar and flotation tests of Hunan low-grade realgar ore.
本文在描述雄黄矿物的结构和性质的基础上，介绍了湖南雄黄矿低品位矿的浮选试验。
The particle size of grinding circuit is the important factor to the grade of concentrated ore and metal recovery rate.
磨矿分级作业是选矿生产过程中至关重要的环节，磨矿粒度的好坏直接影响到浮选的精矿品位和回收率。
The particle size of grinding circuit is the important factor to the grade of concentrated ore and metal recovery rate.
磨矿分级作业是选矿生产过程中至关重要的环节，磨矿粒度的好坏直接影响到浮选的精矿品位和回收率。
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