This thesis is based on the situation of Shi Rengou iron Mine managed by Tangshan Iron & Steel Company, and makes a study of simulation optimization on waste-rock disposal of surface mines.
以唐钢石人沟铁矿为背景，进行露天矿岩石排弃的模拟优化研究。
Russia mines some in territorial waters in the Gulf of Finland and several other countries hold exploration licences, but bringing them to the surface has never become economic.
俄罗斯矿业在芬兰海湾的领海内和其他几个国家都持有勘探证，但将这些矿物开采到地面上经济上还不具可行性。
Where oil sands are close to the surface, they are extracted in large open pit mines.
那里的油砂离地表很近，可以从巨大的露天矿井里直接抽出来。
This shift is due to both improved safety standards and technology as well a move away from underground mines towards surface mining and controversial mountaintop-removal mining.
这种数据上的提高在于安全标准的提升和技术的进步，同时，地表开采和富有争议性的削山开采也使得地下开采也逐渐走到地上。
Roak spoil removal system of mine surface is to ensure mine roak spoil removal requirement, and to realize a key link of coal production continued development of mines.
矿井地面排矸系统是保证矿井矸石排放需求，实现矿井煤炭生产持续稳定地增长的关键环节。
Modern technology influence intelligent sea mines are relatively inexpensive weapons providing at the same time equally effective measures against surface and submarine vessels.
现代智能非触发水雷是一种较为低廉的、反舰和反潜同样有效的武器。
Through the research on condition, form, character and factor of surface movement induced by exploiting coal. The paper discusses the surface deformation of some coal mines in Shanxi province.
本文通过对采煤后地表移动和破坏的破坏条件、形式、特性，影响因素等方面的研究，对山西省部分矿区的地表变形进行了论证。
The surface subsidence for caving mining used for metal mines with steep veins, a worldwide difficult problem, belongs to the realm of surface movement under the effect of tectonic stress.
崩落法开采急倾斜金属矿山的地表沉陷问题是国际性重大难题，属构造应力影响下地表移动问题。
The entire switch without a moving contact surface has high explosion proof and waterproof function, meeting the requirement of chemical industries, coal mines, underwater, and milling working.
整个开关没有动接触面。所以具有较高的防爆防水性能。满足化工，煤矿、水下，制粉作业的要求。
ASTAMIDS carries multi-sensor electro-optical infrared and multi-spectral imaging systems to detect patterned surface emplaced mines, patterned recently buried mines, and randomly scattered mines.
ASTAMIDS进行多传感器光电和红外多光谱成像系统检测图案表面布设的地雷，最近图案的埋地雷，零星的地雷。
If radon measurement is available for the surface conditions in mining area, the establishment of the abnormal pattern can provide a reference for the radon measurements of similar mines.
若矿区地表条件适合氡气测量，该异常模式的建立能为更多需要开展氡气测量的矿区提供借鉴。
If radon measurement is available for the surface conditions in mining area, the establishment of the abnormal pattern can provide a reference for the radon measurements of similar mines.
若矿区地表条件适合氡气测量，该异常模式的建立能为更多需要开展氡气测量的矿区提供借鉴。
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