该模型考虑矿体的开采顺序和矿床不同区段的品位分布，实现了地下开采边界品位在时间和空间上的动态结合。
The model considers the mining order and the grade distribution in different deposit sections and has realized the time-space dynamic combination of the cutoff grade in underground mining.
面临依赖进口的窘境，意大利已开始致力于开采在边界内发现的可再生能源。
Faced with such dependence on imports, Italy has been making an effort to exploit the renewable sources found within its borders.
他们预言，在海底开采金、银、铜将成为下一个最大的生态灾难，因为海底脆弱的海洋生态系统是我们知之甚少的边界。
The fragile marineecosystem of the sea floor is a frontier that we know very little about
本文根据采矿工程实际，提出了胶结充填开采的边界元数值模型。
Based on mining engineering actualities, the paPer puts forward a boundary element numerical model for consolidated fill mining.
在320铀矿床常规开采条件下，要求铀矿资源(金属量)利用程度不低于原情况的95%时，选择的边界品位为0.045%。
Under the normal mining condition and 95% the utilization rate of the uranium resource in 320 uranium Deposit, 0.045% as the marginal grade is recommended.
美国与墨西哥同意共同开采墨西哥湾横跨双方海域边界地区的深水油气资源。
The US and Mexico have a GREed to work together to develop deep-water oil and gas fields that straddle their maritime border in the Gulf of Mexico.
以净现值最大为优化目标，同时考虑采、选、冶三阶段因素，给出了地下开采矿体边界品位动态优化的方法。
Taking maximum net present value as an optimum target and considering factors in mining, milling and metallurgy, a dynamic optimum method for optimizing cutoff grade of underground orebody is given.
文章根据铜矿峪铜矿开采条件，运用边界元法进行了矿块崩落法拉底过程中应力分布规律的研究。
Studies of stress distribution during undercutting were carried out using Boundary Element Method for Tongkuangyu Copper Mine.
结合露天开采的边界条件与露天转地下开拓系统条件，提出诱导冒落法高效开采方案。
In combination with the boundary conditions of open-pit and the development system of the underground mining transferred from open-pit, a high efficient induced caving method is proposed.
这块与世隔绝的部落土地，尤其是附近的秘鲁边界一侧，伐木、开矿、开采石油和天然气、水力发电以及毁林种地行为愈演愈烈。
The isolated tribe's land, especially on the other side of the nearby Peruvian border, is much sought after for its lumber, oil, minerals, natural gas, and hydroelectric and farming potential.
这块与世隔绝的部落土地，尤其是附近的秘鲁边界一侧，伐木、开矿、开采石油和天然气、水力发电以及毁林种地行为愈演愈烈。
The isolated tribe's land, especially on the other side of the nearby Peruvian border, is much sought after for its lumber, oil, minerals, natural gas, and hydroelectric and farming potential.
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