查询词典 ore district

Gold metallogenesis in the level of ore belt, ore deposit and orebody are controlled by multi-order tectonic system resulted from orogenesis.

金矿床成矿作用从矿带、矿床到矿体甚至矿脉均受到不同级别的构造变形控制。

In order to cut down the cost and pursue economy of scale, every enterprise chartered big vessels to transport a great deal of iron ore when ordering. However, the massive stock occurred because it far more overpast the demand of steel enterprises throughput. Next, the volumes stock bring on abundant cost of stockpile, since it can not be distributed in time due to limited capacity of transportation. Furthermore, there is a big pressure to railway authority to distribute the iron ore.

钢铁企业订购铁矿石时，为降低成本、追求规模效益，一般采取大船进行海运运输，而一次的运量可能大大超过了企业近期的生产能力，大量的库存便产生了；其次，如此大量的矿石集中到港，无法通过疏运能力的"瓶颈"，在港口堆场堆存又产生了大量的堆存费用；此外，大批量的疏运对铁路部门也产生了压力。

In order to find new pegmatite Nb-Ta ore-deposit, it is very important practical-significances to ascertain the host structure characteristics and the relations between the tectonic epochs and ore-forming.

通过查明矿床的容矿构造特征以及构造期次与成矿的关系，对寻找新的铌钽伟晶岩矿床具有重要的实践意义。

Bad penetrability ore which has high mud content is examined by adding penetrative matter in order to improve ore penetrability.

对含泥量高、渗透性差的矿石，添加渗滤物质以改善渗透性能进行了研究。

These two ores have contrasting mineral associations: anthothyllite + plagioclase + rutile + magnesiohornblende + alkline fledspar for red ore and anthothyllite + phlogopite + epsode + Rutile for black ore.

根据岩相学观察，认为红色金红石矿中存在如下方向的反应：镁角闪石+碱性长石→直闪石+／-斜长石+／-金云母，斜长石很可能只是过渡相，反应最终将形成直闪石+金云母。

The author studies the output appearance, mineralized characteristics and ore type of the south and north zone of potash feldspar ore in the area on the boundary between Henan and Shaanxi.

本文研究证明区内有南、北两条钾长石成矿带，其产出形态、矿化特征、矿石类型均有差异，且导致了它们在工业应用上的不同。

Keywords Characteristics of ore-controlling structure;Ore-controlling mode and deposit occurrence law;Prediction

控矿构造特征；控矿模式及矿床赋存规律；成矿有利区域；预测

Below a lot of circumstances, as a result of a variety of reasons this kind of ore does not have large-scale exploitation, because these ore contain prussiate but the copper of dissolve is mineral, reduce gold substantially thereby reclaim rate, raise the wastage of prussiate substantially, and the cost that raises follow-up processing.

在很多情况下，由于多种原因这类矿石并没有大规模开采，因为这些矿石含有氰化物可溶的铜矿物，从而大幅度降低金的回收率，大幅度提高氰化物的消耗量，以及增加后续处理的成本。

By prereducing ore in static bed and final reducing in ore furnace stimulating the process of smelting reduetion with iron bath, the feature and mechanism for the corrosion of Al2O3-C-TiO2 and Al2O3-C-TiC refractories are studied,the influence of composition and characteristics of the melt on the corrosion of refractories and the changes of microstructure and phase composition of refractories are also analyzed.

模拟铁浴式熔融还原工艺，采用固定床预还原法对铁矿石进行预还原、在矿热电炉上进行终还原熔炼试验，研究和测试了Al2O3-C-TiC质耐火材料的侵蚀特征和侵蚀机理，分析了熔体组成与性质对耐火材料侵蚀过程的影响及熔体侵蚀过程中耐火材料的物相组成和结构变化规律。

Through analyses of ore properties, Huayuan manganese ore is determined to be phosphorus—rich and iron—poor rhodochrosite.

有害元素磷主要以磷灰石独立矿物形式产出，粒度在3～20μm之间，矿样粒度为—45μm时，磷灰石主要以游离形态产出，被包裹在碳酸锰矿物中的磷灰石相对锰矿物明显减少。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48