1.
Key Technology About Deep Mining of Surface Mine with Inclined Coal Seam
倾斜煤层深凹露天矿深部开采关键技术研究
2.
Determine the final slope angle of deep realm steep working slope mining in PingZhuang West open pit mine
露天矿深部境界陡帮开采最终帮坡角的确定
3.
THE RESEARCH OF THE OPEN-PIT' ECONOMIC STRIPPING RATIO AND THE LAST LIMIT DEPTH;
露天矿经济合理剥采比和最优开采深度的研究
4.
glory-hole system
露天放矿漏斗开采法
5.
Strip mine is another form of surface mining.
露天剥离矿是露天开采的又一种类型。
6.
Surface mining is only used when the mineral deposit lies near the surface of the ground. For those buried deep in the ground, underground mining is used instead.
露天开采只是在矿床靠近地表时才使用。对深埋在地下的矿床，采用地下开采。
7.
Study on Some Safety Problems of the Daye Iron Deep Open-pit-mine Transferring to Underground Mining;
大冶铁矿深凹露天转地下开采的几个安全问题研究
8.
Optimum Design for West and Northwest Bound Slope in Buzhaoba Open-Pit Deep Mining;
布沼坝露天深部开采西帮及西北帮边坡的优化设计
9.
STUDY ON OPTIMIZATION OF MINING PROCEDURE FOR SOUTH OPEN PIT
霍林河南露天煤矿开采程序优化研究
10.
of coal, as contrasted with coal obtained from a strip mine.
关于煤，与从露天矿中开采的煤相对的。
11.
Terms relating to coal mining--Surface mining
GB/T15663.4-1995煤矿科技术语露天开采
12.
Mining operations by open-cut methods ceased in 1962.
露天开采的矿山作业已于1962年停止。
13.
Research of Application of Dragline Stripping Technology in Opencast;
露天矿索斗铲倒堆工艺开采方法研究
14.
Brief talk on application of the GPS technology on open pit mine exploration
浅谈GPS技术在露天矿开采中的应用
15.
Establishment of 3D Model & Exploitation Design for Transition from Open Pit to Underground in 701 Mine
701矿3DM构建与露天转地下开采设计
16.
Research on the Mining Effect from Mining Deep-Level Orebody in Jinchuan No.2 Mine
金川二矿区深部矿体开采效应的研究
17.
Analysis on the personal noise exposure in an outdoor iron mine factory
某露天开采铁矿厂个体噪声暴露测量结果分析
18.
(of mines and mining) worked from the exposed surface.
（矿或采矿）露天挖掘的。