查询词典 ore mining

ABSTRACT Sublevel and block caving are extensively used in mining procedures. The emphasis was focused on the theoretical investigation of ore-drawing over a long period of time.

崩落采矿法是国内外金属矿山广泛应用的采矿方法，而放矿理论长时期是研究的重点，虽然有关的放矿理论很多，但矿岩移动规律还需进一步深入研究。

Spontaneous combustion of sulfide ores is one of the major hazards in safe mining of sulfurous ore deposits.

硫化矿石自燃是硫化矿床开采过程中的重大灾害之一。

Valuation of movement probability has remained difficult to solve up to now without appropriate solution given to it.Today the movement probability used in ore-drawing simulation is still with traditional valuation all through,but it is unadaptable to mining simulations nowadays.

移动概率赋值问题至今没有一个很好的解决方法，现今的放矿仿真使用的移动概率仍然为传统的移动概率赋值方法，并且是始终不变的，已经不能适应现今矿山的仿真要求。

For decades , iron ore was plentiful , prices were stable and mining the commodity was a monotonous and unglamorous business .

在长达数十年中，铁矿石储量丰富，价格稳定，开采这种大宗商品是一个单调乏味的行当。

Smh.com.cnApril 5, 2008 In Hunan province, peasants have made a cottage industry out of mining uranium ore.

smh.com.cnapril五， 2008年在湖南，农民作出了平房工业走出开采铀矿。

In this paper, a lot of research works of algorithms of mining CAD has been done. Many important mine specialty graph operation algorithms have been put forward. The main results are as follows: polygons cut out algorithm, two close polygons mutual, merge and subtract algorithm, polygon vector fill, any vector polygons area calculating and sequence polygons or multifold which has the direction and region area calculating, curve smoothing, graph element search for any region, graph element attrib collect in any region, parallel polygon or vector intersection-point push out or pull in, ore reserves and grade calculating for any type polygon, mine spatial data searching and boundary line tracking and automatic link algorithm etc.

论文在矿山图形算法研究方面做了大量的工作，提出了许多有价值的矿山专业图形运算算法，主要算法有：多边形裁剪算法、闭多边形的加、减、并算法、多边形的矢量填充算法、任意有向多边形、有向多连域、有向多边形序列面积算法、多种曲线光滑算法、任意区域的图元搜索算法、任意区域图元属性提取算法、多边形平行外推/内缩算法、任意多边形储量品位计算、矿山空间数据搜索算法、界线的自动追踪和连接等。

Through analyzing the situations of Guizhou province and the institute, Guizhou Chemical Geology Prospecting Institute has set up a developing aim that is "mainly do geological ore search ,try to cooperate prospecting with mining,steadily develop engineering prospecting ,strength diversified economy,vivify property management".

贵州化工地质勘查院从认真分析省情和院情入手，确立了"地质找矿为主，试行探采结合，稳步发展工勘，加强多种经营，搞活物业管理"的发展思路。

The status of research of mining and beneficiation technologies for iron ore resources in Anshan is analyzed.

介绍了鞍山地区铁矿资源情况，分析了鞍山地区铁矿石资源开采的综合技术和选矿技术的研究情况，对鞍山地区铁矿资源利用提出建议。

Along with the mining industry declining, the settlement distribution, the population aging (in 96 year Tongshan Village old person ratio nearly 30%) with industrial reforming, under such environmental chane, Japanese Colonial Periodaround the time, the gold ore prosperous time, after the Recession of Taiwan in the recovering time historical vein, the substantive space, how does the social space's change live regarding the place maintains with is balanced; How between the reciprocity to achieve settlement old person each other's interaction and the familiar environment?

随著矿业的没落，聚落的分布，人口的老化(96年铜山里老人比率近30%)与产业的转型，在这样的环境变迁下，日治时期前后、金矿兴盛时期、光复时期之后的历史脉络里，实质空间、社会空间的改变对於地方之居住如何相维持与平衡；相互关系之间如何达到聚落老人彼此的互动与熟悉的居住环境？

Because Zhaokou mine of Jinling iron mine of Shandong make use of strata pressure controlling theory to do reasonable dividing for declinate ore body room and pillar ,the calculated recovery ratio η is up to 73 6% and maintaining the stability of mining field at the same time.

山东金岭铁矿召口分矿运用地压控制理论，对倾斜矿体房柱进行合理划分，计算回采率η达73。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。