• A visit to an abandoned opencast mine on a rocky Swedish island where four rare earths were found in the 18th and 19th centuries fails to bear fruit.

    瑞典一个遍布岩石的岛屿曾在18和19世纪发现了四种稀土元素,对岛上一座废弃露天矿的造访也未能奏效。

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  • Hargrove asks how our viewing of the night sky is affected by our knowing whether what we see are the craters of the moon's natural state, or only man-made excavations and opencast pits.

    哈格罗夫提出疑问:我们看到的是月球自然状态下的环形山还是人为挖掘露天开采的凹坑?这种认知是如何影响我们观察夜空的?

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  • There are hundreds of times more coal mines than uranium mines, including opencast sites, and a lot of them of them are many times bigger and more destructive than the largest uranium operations.

    包括露天矿在内,煤矿的数量是铀矿数量的几百倍。而且许多煤矿都要比最大的铀矿既成倍地大又更具有破坏性。

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  • This new diesel-electric mining truck puts all other transport vehicles used in opencast mining in the shade.

    此新型柴油-电动矿用卡车使露天采矿中所用的其他所有交通工具黯然失色。

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  • It is necessary that stripping plan be timely provided during the opencast mining.

    露天矿生产过程中,需要及时提供采剥工程平面图。

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  • Stability of side slope is the basic guarantee for normal production of the opencast stope.

    边坡稳定是露天采场生产正常进行的基础保障。

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  • A new method to calculate the lateral pressure and horizontal crustal stress of the slope in opencast m...

    提出了露天矿边坡侧压力及水平地应力计算的新方法,找出了露天矿边坡水平地应力的竖向分布规律。

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  • The analysis for the exemplified landslip of a particular opencast coal mine proves the model to be satisfactory.

    通过某露天煤矿的滑坡实例的计算分析,证明本模型是令人满意的。

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  • According to the actual situation in opencast in Harbin City Coal Industry Comp., provide technical reform measures.

    根据哈尔滨市煤炭工业公司露天矿开采实际状况,提出了技术改造措施。

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  • The results have offered security guarantee condition when opencast working switches to underground working in the mine.

    探测结果,为该矿由露天开采转入地下生产,提供了安全保障条件。

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  • A new method to calculate the lateral pressure and horizontal crustal stress of the slope in opencast mining has been giv...

    提出了露天矿边坡侧压力及水平地应力计算的新方法,找出了露天矿边坡水平地应力的竖向分布规律。

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  • Comparing to raw limestone opencast collected, that exploited from cave is higher in purity, less in impurity and steadier in quality.

    原料石灰石采用洞采方法,与露天采集的原料比,纯度高、杂质少、质量稳定。

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  • The large tonnage trucks are used in China's big opencast mines widspreadly and so consumption of giant tires is steadily on the increase.

    我国大型露天矿已普遍使用大吨位载重汽车,与之配套的巨型轮胎消耗量亦与日俱增。 人们发现在大量报废的轮胎中,相当数量是因为使用中胎压过低而损坏。

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  • Gradient selection of side-slope, side-slope protection and side-slope glide control for opencast mining are tentatively investigated in the paper.

    本文对露采边坡的陡度选择、边坡保护以及边坡下滑的处理,进行了初步探讨。

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  • With the finite element method of material description, the rock mass in underground and opencast united mining engineering was simulated and analyzed.

    采用物质描述增量有限元方法,对露天与地下联合开采工程岩体进行了数值模拟分析。

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  • An optimized mining plan model was presented for opencast mines. During the development of the model, mining construction was given full consideration.

    针对露天矿采掘进度计划优化编制问题,建立了一个数学模型,同时较充分地考虑了作业条件下的模型建立和问题的处理。

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  • The purpose of the paper is to discuss the relationship between underground right and ground right of reclaimed land in the process of opencast working of coal mine.

    研究目的:探讨煤矿露天开采过程中复垦土地地上权和地下权的关系。

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  • The structure and working principle of the integrated monitoring system of opencast mining slopes deformation has been introduced. A monitoring example has been given.

    文章介绍了露天矿边坡智能可动式自动监测系统的结构、工作原理,给出了监测实例。

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  • This fault diagnosis data transmission and processing system for opencast coal mine management have been carried out on-site installation and testing, and it is working normally.

    本文研发的露天煤矿设备故障诊断数据传输处理系统已进行现场的安装调试,初步使用正常。

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  • The spoilbank is a place in the opencast mine where the engineering disasters easily happen, and the control of the disasters of the spoilbank is very important for the mine enterprises.

    排土场是露天矿山工程灾害的易发部位,加强排土场灾害治理对矿山企业具有重要意义。

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  • However, Mr Wang said the partners hoped to establish a new opencast mine near their existing coal-extraction venture at Xiwan in Shaanxi, in which Anglo American holds a majority stake.

    但王国柱表示,双方希望在现有的陕西西湾煤炭开采转化合资企业附近,开发一座新的露天煤矿,由英美资源集团持有多数股权。

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  • The electric railway opencast mine is simplified to a even distribution parameter mode in this paper. By this mode, the distribution and main influencing factors of DC leak current are analyzed.

    通过建立露天煤矿电气化铁道简化的均匀分布参数模型,分析了直流杂散电流的分布规律和影响直流杂散电流的主要因素, 并提出了抑制杂散电流应采取的有效措施。

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  • The paper discusses the employment situation of big excavator in domestic mine, big excavator in Benxi Steel Nanfen opencast mine is made for example to illustrate its action in mine production.

    主要讨论了大型挖掘机在我国矿山上的使用情况,以本钢南芬露天矿的大型挖掘机为例说明其在矿山生产中发挥的作用。

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  • Systematically studied the chemical composition, mineral composition, main mineral dissemination characteristics and dissemination size of ores from Sijiaying Iron ore mine first-stage opencast.

    系统地研究了司家营铁矿一期露天矿矿石的化学组成、矿物组成、嵌布特征及嵌布粒度。

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  • Progressive disruption is common to the disruption of opencast slopes, A reliability model for progressive disruption of the slopes is developed starting from the transfer probability of disruption.

    渐进破坏是露天矿边坡破坏的一种共性。从破坏的转移概率入手,建立了边坡渐进破坏的可靠性模型。

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  • Opencast mining by an American company began in 1956, and continued after it was nationalised in 1973.

    美国一家公司于1956年进行露天开采,一直到1973年秘鲁将其国有化。

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  • As Houxi Opencast Mine has smaller mining boundary and it is near villages, the safety of mining and controlled blasting are strictly required.

    侯西露天矿开采境界小,距离村庄近,对剥采作业安全性、控制爆破技术有较高的要求。

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  • As Houxi Opencast Mine has smaller mining boundary and it is near villages, the safety of mining and controlled blasting are strictly required.

    侯西露天矿开采境界小,距离村庄近,对剥采作业安全性、控制爆破技术有较高的要求。

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