查询词典 uranium ore

The analysis result shows that the basement fault anomalies control a few major large hidden batholiths and their associated orefieldsthat the anomalies of cover structure confine most Cu-Au deposits and Fe-Cu deposits within their scopethat the geochemical anomalies and lithofacies-paleogeographical anomalies are major geological factors leading to trataboundness of some Cu-Au depositsthat the anomalies of rock operties provide the favorable chemical and physical conditions for the ore-forming process, including the seepage, circulation,convergence and deposit of ore-bearing hydrothermal solutionthat the anomalous ctive stage of Mesozoic magmatite is almost consistent with the major mineralization epoch of the Fe,Cu deposits, and the structure of multi-levels,and the zoning in magmatic system determine the spatial distribution of the mineralization system.

由分析可知基底断裂异常控制了本区若干重要规模较大的隐伏岩基及伴生矿田，而盖层构造异常控制铜金矿床和铁铜矿床的空间位置地层的地球化学异常和岩相古地理异常是造成一些铜金矿床层控性的主要地质因素盖层的岩性异常为含矿热液的渗流、循环、聚集和矿质沉淀等一系列成矿作用提供了有利的物理和化学条件中生代岩浆岩的异常活动期也是本区主要的铁铜成矿期，岩浆岩系统的多层分枝和分带性结构控制了本区成矿系统的三维空间分布。

There exist tuff with abundant organic materials at the bottom of P2-3β^1-1 and hydrothermal exhalation breccias between P2-3β^1-1 and Dachang quartz rock, which constitute main ore-containing space and ore-hosting rocks.

在该区，P2-3β^1-1底部富含有机质的凝灰岩，P2-3β^1-1与大厂石英岩之间的热液喷发角砾岩，都是最主要的赋矿部位和容矿岩石。

The ore is lead mine of partial oxidation,the lead ore consists chiefly of galena and cerusite.

所处理矿石为半氧化铅矿石，矿石中铅以方铅矿和白铅矿形式产出，铅的氧化物主要为白铅矿，分布率达39%。

Gold ore contains only trace amount of valuable elements,and yielding much more tailings after pro- cessing and metallurgy than other metals ore.

黄金矿石有价元素含量很少，经选冶后产生比其它金属矿石更多的尾矿。

Extractors mine ore from deep below the ground yielding a large amount of ore over time.

抽取者。在很大一个范围内从地下抽取矿藏。

Extractors mine ore from deep below the ground yielding a large amount of ore over time.

在很大一个范围内从地下抽取矿藏。

According to the technical process of grinding and some practice experiences from the operation, using the practical flux of ore feeding for rod mill, and the difference between the practical flux of ore feeding and the flux of undersize screen feeding as the premises of fuzzy rules, a non-homogeneous T-S fuzzy mode for optimized feeding decision-making of rod mill was built.

根据棒磨工艺流程和操作经验，以棒磨机实际给料量及其与棒磨后的筛下给矿料的比较值作为前件，建立了一个棒磨机给料的非齐次T-S优化决策模糊模型。

Vacuum ball perlite glass beads insulation mortar and float ore work anti fissyre mortar is a complete insulation system, particulariy, the clean surface cracking mortar is not available can increase the cement glue to replace the float ore work.

真空球珍珠岩玻化微珠保温砂浆和抹面抗裂砂浆是一个完整的保温系统，特别是抹面抗裂砂浆将是不可用加胶水的水泥砂浆代替进行抹面。

In orde to obtain system optimization in high efficiency production and operation safety, the microcosmic problem of goaf treatment was brought into the creative design of mining method and the synergism of two problems was studied. Firstly, in view of the occurrence characteristics and mining conditions of catacalstic ore section of orebody No. 105 in Gaofeng mine in Guangxi province, considering the adaptability to different scale goafs in the ore section, based on mining environment reconstructing idea and continuous mining mode, a new mining method (mining environment reconstructing non-pillar sublevel-strip continuous mining method) was put forward. Then, some repr, esentative goafs were selected and their stabilities were calculated by discrete element method on the basis of differences of goaf scale, surrounding conditions and situ stress field. At last, the mining layout was adjusted on the basis of goafs stability analysis and the goafs were adjusted as a part of cutting engineering, blasting space or stope, so as to determine all kinds of goafs treatment schemes.

摘 要：为在生产高效和作业安全上取得系统整体最优，将碎裂矿段的空区处理微观问题纳入采矿方法创新设计宏观问题中，开展2种问题的协同研究：首先，针对广西高峰矿105号矿体碎裂矿段的赋存特点和开采技术条件，考虑对各种规模空区适应性，基于采矿环境再造和连续采矿理论，提出采矿环境再造无底柱分段分条连续采矿法；然后，根据采空区规模、围岩状况和原岩应力场等条件的差异，在所有采空区中选择具有代表性的空区，运用离散元程序对其稳定性进行计算分析；最后，在稳定性分析的基础上，灵活调整开采布局，将采空区调整为部分切割工程、自由爆破空间或采场，从而确定出各种规模空区的处理方案。

Although much of the high-grade ore has been used, there remains enough low-grade ore to last for centuries

品位高的富铁矿已经开采很多，品位低的铁矿还够开采若干个世纪。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。