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- under- water ore body 水下开采
- It is proved that this safe,effecstive method is suited for mining under the conditions of unstable ruck and ore body. 实践证明,该采矿工艺具有安全、高效、贫化损失小和技术先进的特点,适用于矿岩结构极不稳固的顶板复杂矿体的回采。
- In thesis some special -minings were analysesed and discussed for the unstable rock -surrounded ore body under well in baoshan lead zinc silve r mine. 针对湖南宝山铅锌银矿井下不稳固围岩内矿体,就几种特殊采矿方法进行分析和探讨。
- Gaoyang Iron Mine is a small-sized ore body of contact metasomatic skarn and is a typical karst ore body with water in the north of our country. 高阳铁矿是接触交代矽卡岩型小型矿床,是我国北方典型的岩溶充水矿床,生产中发生了突水淹井事故。
- Gold ore bodies formed by every pulse and mant... 为本区的地质找矿提供了一个明显的找矿标志。
- Ore bodies are tabular or tabularoid. 矿体呈板状、似板状。
- A first decline was sunken to provide access to the ore body and trail mining was carried out in different stopes. 第一次沉降为我们提供了接近矿体的机会,公司在不同的采矿场进行了试采。
- Experimental Research on Mining Plan of 2# Ore Body of Huangshilao Mining Area of Tongling Jinchan Co. 黄狮涝矿区2%23矿体开采方案试验研究。
- Uranium ore bodies are planar or lenticular in shape and under the control of the contact between gray sandstones and bleached sandstones. 铀矿体呈板状、透镜状,受漂白砂岩与灰色砂岩接触带控制。
- Piedmont potassic alteration zone is the product of potsash feldspathization, part of the zone is ore body. 矿区山前钾化带是钾化蚀变的产物,局部地段构成矿体。
- It is always very difficult to forecast concealed ore body in loess overburden area. 黄土覆盖区找矿预测评价历来是地质找矿工作的难点。
- The characters of deep mine are larger raw rock pressure,larger ore body plasticize,mine pressure severe appearance. 深矿井的特征是原岩压力大、矿体塑性大及矿山压力显现剧烈。
- The uranium-rich ore bodies are resulted from multiple-transtormation and reconcentration of early diagenetic uranium mineralization by oxygen-bearing ground water. 含氧偏酸性的地下循环水在后生成矿过程中对含铀建造中的成矿元素(铀)起着活化再分配的后生富集作用.
- The interformational faulted zone structures result from anticline controlling faulted-zone-type skarn ore body. 层间破碎带构造,控制着破碎带型矽卡岩矿体,为背斜层间滑动形成的破碎带。
- Most of the iceberg is under the water. 冰山的大部分在水面以下。
- Huangsha wolfram deposit of Yudu Wolfram Mine is beded quartz-vein deposit, and the ore body occurrence is varied. 铁山垅钨矿黄沙矿区钨矿床属典型的“五层楼”结构石英脉型矿床,矿体形态变化较大;
- The dam burst under the weight of water. 那水坝在水的压力下决口了。
- Three spodumene samples with different colors and two aegirine samples were taken from the same ore body to be tested. 以3种不同颜色的锂辉石和两种霓石为例,分别以油酸钠和十二胺作捕收剂研究了同种矿物的浮游性差异及产生的原因。
- He sucked in air, then went under the water again. 他深深吸了一口气又潜到水里。
- Vertical slicing by filled stopes method is effective to mine fracturing ore body with theroof of moderate inclination. 中等倾斜顶板破碎矿体的开采,垂直分条充填采矿方法是一种较为有效的方法。