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1)  mining in openpits
露采
2)  Opencut mining to well mine
露采转井采
3)  Open-pit mining
露天开采
1.
Feasibility of open-pit mining on shallow coal pillars of mine
矿井浅部煤柱露天开采可行性研究
2.
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。
3.
Accor ding to the depth increasing of open-pit, the ore source of open-pit mining is decreasing day by day, at the same time, the condition of open-pit mining turns into very hard, so some open-pit mines start to transfer into the underground mining.
随着露天开采矿山深度的增加,地表矿石资源日益匮乏,同时露天开采条件也变得越来越复杂,许多露天开采的矿山已经转入地下开采。
4)  Open mining
露天开采
1.
Building of analog virtual laboratory for open mining;
露天开采模拟虚拟实验室的建立
2.
Preliminary exploration of the cause of land slip and its prevention and control in the open mining of metal mines;
金属矿山露天开采滑坡原因及防治技术初探
3.
Open mining aims at Sedimentary and Accumulative bauxite,underground mining is for Permian bauxite,Middle-upper carboniferous bauxite and mid-Carboniferous bauxite.
调查表明,目前国内铝土矿85%以上为露天开采,其余为地下开采和民采。
5)  open-pit [英]['əupən'pit]  [美]['opən'pɪt]
露天采场
1.
Recovering residual ore body technology in open-pit;
露天采场残留矿回收技术
2.
For the purpose of recovering mineral resources,stabilizing the mine producibility,prolonging the service time,the remained ore carried on open-pit mine.
为了减少爆破震动的影响,维护露天边坡的稳定性,保护地表建筑物、古采矿遗址及相思河河流,对露天采场临近边坡采用控制爆破。
6)  coal surface mining
露天采煤
1.
The development direction of coal surface mining in china is discussed,and put forward some suggestions.
在露天采煤崛起的新形势下,文章分析了世界露天开采技术发展的特点,探讨了露天采煤的发展方向,并提出了几点建议。
2.
The development of chinese coal surface mining is overviewed.
回顾了我国露天采煤的发展历史,指出我国露天采煤的新高潮正在兴起。
补充资料:露采
分子式:
CAS号:

性质:又称露采。一种在敞露的地表采场剥离岩石、开采矿石的作业方法。分为露天机械开采法和露天水力开采法。前者是用一定的采掘运输设备、按一定的生产工艺流程从地面将矿体(层)上部的覆盖岩层和四周的岩体剥离掉,自上而下分梯段采矿,采出矿石通过露天沟道或地下井巷运至地面堆场或矿仓的开采方法;后者是用水枪射出高压高速水流冲采矿石,并用水力冲运的开采方法,多用于开采松软矿床。通常露天开采法适于开采矿体(层)埋藏浅、厚度大、分布范围广的矿床。

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