矿

Authors suggest that uranium ore formation occurred after the appearance of the above subsidiary tectonic units, and sandstone bodies of the Ⅱ,Ⅲ,Ⅳ,Ⅶ cycles, Shuixigou Group in the southern syncline, and sandstone bodies of the Ⅰ,Ⅱ,Ⅲ,Ⅴ cycles, Shuixigou Group, as well as sandstone bodies of Xiaoquangou Group in the northern monoclinal zone, they are ...

文章认为铀成矿作用发生在这些次级构造单元形成之后，且具有找矿前景的是南部向斜带水西沟群第Ⅱ、Ⅲ、Ⅴ、Ⅶ旋回砂体和北部单斜带水西沟群第Ⅰ、Ⅱ、Ⅲ、Ⅴ旋回砂体及小泉沟群砂体。从容矿层位连续性、分布面积、砂体特征及层间氧化带发育特征等成矿条件看，北部单斜带铀成矿条件和找矿前景均优于南部向斜带。

All these indicate that the gold and cobalt ores were formed later than the iron ores. Chemical analyses of the ores and wall rocks suggest that the south and north iron ore zones were formed by the same ore_forming process. The differences of Au, Cu and Ni contents between these two iron ore zones might have resulted from the late intrusion of monzonite.

元素地球化学分析结果表明，矿区内南、北矿带总体上是同一期成矿作用的产物，它们的少数成矿元素含量和矿石磁性之间的差别，可能与南矿带曾遭受后期二长岩侵入活动的影响，造成了部分成矿元素的活化迁移有关。

The cyclones with short cone are used for crude grading of minerals with heavier specific gravity in gold mines, sand gold mir.es and sulphur ore mines and have such advantages as small ground occupation, high capacity, high operating flexibility, low energy consumption and high movability etc.

短锥分选旋流器用于金矿、砂金矿、硫化矿等比重较大的矿物的粗选作业，具有占地面积小，处理能力大，操作弹性大，能耗低，可移动性强等优点。

The main experimental results are as follows:(1) the moving border is related with the size of grain, size of thawing hole and type of material. However, the piling height of grain has little effect on the moving border;(2) the flow speed of grain is effected by size of grain and size of thawing hole.

研究结果表明，(1)移动边界与散体的材料、颗粒的尺寸大小、放矿口大小等因素有关，而散体堆积高度对其影响不大；(2)散体的流动速度与散体颗粒的大小和放矿口尺寸有关。

The relationship among the moving border, size of thawing hole, size of grain, type of grain and the height of grain is studied. The relationship between the size of thawing hole and the released quantity is studied by plane pattern and stereo pattern.

试验内容有放矿口大小与散体移动带试验；不同散体粒径与散体移动带试验、不同散体材料与散体移动带试验；平面和立体模型时放矿口尺寸对放出量影响试验；散体堆积高度与散体移动带试验。

Danba Muscovite Mine,Sichuan is one of earliest muscovite mines in China.

四川丹巴白云母矿是我国开发最早的白云母矿之一。

Because of the rich mineral deposits of gold, silver, nickel, zinc

由于在加拿大地盾的远古石头上发现的金矿，银矿，镍矿，锌矿，铜矿

Because of the rich mineral deposits of gold, silver, nickel, zinc,copper, and iron ore which are found in the ancient rock of the shied.

由于在加拿大地盾的远古石头上发现的金矿，银矿，镍矿，锌矿，铜矿及铁矿均蕴含丰富的矿物质沉淀，它令加拿大成为世界顶尖的矿物生产商之一。

Attapulgite deposits are rare and valuable in the world. Large iodic attapulgite deposits with total reserves of 2 500 million tons were found in central and western Gansu Province. High iodine exists in attapulgite ores. There is about 0.0418% iodine in western attapulgite ore and 0.0425% in central ore, which are almost the same as the iodine content of niter in Chile.

凹凸棒石矿为稀有的非金属矿种，近年来，在甘肃中、西部第三纪地层中发现了大型凹凸棒石矿，矿石总储量可达2.5亿吨，矿石中碘含量较高，西部凹凸棒石含碘约为0.0418%，中部平均含量约为0.0425%，与智力碘硝石的含碘量（0.04%）相当。

Therefore,we tested the decomposition and mineralization of organic matter within 24 hours in an aquarium to investigate the role of nitrobacteria in the process.

有机质矿化分解的氮、磷等营养元素极易引起水体富营养化，进而影响生命体在水中的消长，水体有机质矿化是目前研究的热点[1-3]。

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。