This astronaut photograph illustrates three open-pit mines located west-northwest of the town of Green Valley, Arizona.
这张太空照片为我们展示了位于亚利桑那州绿谷镇(GreenValley,位置见文末图)西部及西北部的三个露天矿。
Remains of Titanoboa cerrejonensis were found in a layer of rock at the cerrejon Coal mine, one of the largest open-pit mines in the world.
Titanoboacerrejonensis(蛇的名字)的遗骸是在cerrejon煤矿- - -世界上最大的露天煤矿之一的岩层中被发现的。
Minerals in open-pit mines are excavated by the ton with heavy equipment, but underground they are often extracted painstakingly with pickaxes.
露天矿场里面的矿物可以用重型机械成吨地开采,但是地下矿井里面得用镐费力地挖出来。
Greenhouse gas emissions of tar sands crude are 40% higher than conventional oil, and the open-pit mining has devastated Alberta's boreal forest.
焦油砂的温室气体排放量比普通石油高40%,露天采矿已经极大地破坏了阿尔伯塔的北方气候带森林。
Upstream is the poisonous Berkeley pit, an open-pit mine in Butte, which was once called the Richest Hill on Earth for the quantities of gold, silver and copper mined there.
上游是有毒的伯克利矿坑,一个比尤特的露天矿。它曾经被称为地球上最富有的矿山,因为这里的金、银和铜矿数量巨大。
An experimental test of bench mining in the high and dangerous slope of a certain open-pit mine was made.
在某露天矿山的高危边坡上进行了台阶采矿的试验研究。
Blasting earthquake effect on slope stability of open-pit is an extremely obvious and complicated problem.
爆破地震效应对露天矿边坡稳定性影响是一个极其明显和复杂的问题。
Open-pit limit optimization is an important content in open-pit mining design and production process control.
露天境界优化是露天矿开采设计和生产过程控制的重要内容。
That main excavation and loading equipment at present in domestic large-scale open-pit is the Electric shovel.
目前国内大型露天矿山的铲装设备主要是电铲。
The calculation results and open-pit slope stability under blasting vibration influence are analyzed and appraised.
以计算结果为参照来分析、评价爆破震动对边坡稳定性的影响。
Research on the safety and stability of slope in open-pit mining is very significant to safety production of open mines.
研究露天开采边坡的安全稳定对露天矿山的安全生产具有重要意义。
Disposition of hardware and software of the computer-based truck dispatching system in open-pit mine were described in the paper.
介绍了最近研制的露天矿卡车计算机调度系统的硬件和软件配置。
Computer-based haul truck dispatching in the open-pit is a new technique to increase production or reduce the number of equipment.
露天矿运输车辆的计算机调度是一项新技术,它可以增加产量或减少设备数量。
Dexing copper mine in Jiangxi province is the biggest open-pit non-ferrous metal mine in China, and it is a porphyry copper deposit.
江西德兴铜矿是我国最大的有色露天金属矿,属斑岩型铜矿山。
This has extremely vital significance for production of open-pit mine and maintenance safety of operating personnel and the equipment.
这对指导露天矿的生产和维护作业人员及设备的安全具有十分重要的意义。
Before and after ending of deep open-pit coal mine, geological disasters such as slope sliding and surface deformation probably occur.
分析研究深大型露天煤矿闭坑前后可能发生滑坡、地表变形等地质灾害。
Some problems about mining engineering from open-pit to underground mine are discussed, which will provide reference for the future work.
对永平铜矿露天转地下开采工程有关问题进行了探讨,为下一步工作提供参考。
According to the exploration problems in an open-pit mine, a new drilling method using reverse circulation DTH hammer drill is put forward.
针对露天矿钻探施工中存在的问题,提出了利用贯通式反循环潜孔锤进行施工的新方法。
The influence of underground water on side slope stability of open-pit mining stope was probed. The existent problems at present were explained.
探讨了地下水对露天采场边坡稳定性的影响,并对目前存在的问题作了必要的说明。
On the basis of comprehensive control of north slope in Jinduicheng open-pit mine, some technical measures and results were analysed and summarized.
根据金堆城露天矿北帮边坡综合治理的实践,相关的技术措施及效果分析进行了总结。
Stability forecast model for high steep rocky slope was studied by Linear and nonlinear methods with the case of east open-pit high steep slope in Daye Iron Mine.
结合大冶铁矿东露天高陡边坡,运用线性和非线性方法研究了岩质高陡边坡的稳定性预测模型。
Truck dispatching system based on radio communication in open-pit coal mines is developed and established by combining radio communication with computer technology.
无线通讯露天矿卡车调度系统,是应用无线通讯和微机技术相结合而开发建立的。
The red soil in open-pit mine in inner-Mongolia has specifical engineering geological properties and limits the utilizable function of mining and hauling equipments.
内蒙露天煤矿中红土的工程地质性质特殊,它制约着采运设备效率的发挥。
It is of important significance to the study of the open pit slope stability, underground mining method and mining sequence in open-pit and underground combined mining.
这对研究矿山露天地下联合开采过程中的露天矿边坡稳定性、地下采矿方法和开采顺序等有重要的意义。
For mining pits, especially those open-pit mines where water accumulation is serious, it is difficult to achieve ideal blasting effect in blasting-drilling by general blast methods.
对于采场尤其是爆破钻孔积水严重的露天矿山,一般的爆破方法难以取得理想的爆破效果。
It is reported that the mining area rich in coal resources, coal mining can be thick, buried shallow dip small coal occurrence stability, abundant reserves, suitable for large-scale open-pit mining.
据介绍,这一矿区煤炭资源丰富,可采煤层厚、埋藏浅、倾角小、煤层赋存稳定、储量丰富,适于大型露天开采。
The effect of the blasting of production on main transported adit was analyzed at Nanfen Iron Open-pit Mine.
分析了南芬露天铁矿生产爆破对主运输平硐的影响。
Open-pit mining follows the same sequence of oprations as underground mining: drilling, blasting, and loading and removing waste and ore.
露天采矿遵循与地下采矿相同的作业顺序:钻孔、爆破、装载并运走废料和矿石。
Open-pit mining follows the same sequence of operations as underground mining: drilling, blasting, and loading and removing waste and ore.
露天采矿遵循与地下采矿相同的作业顺序:钻孔、爆破、装载并运走废料和矿石。
It is suitable for the engineering of various open - pit mines and large excavating - hauling combined operation.
它适用于各种露天开采的矿山和大型采掘运输联合作业的工程。
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