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- On the basis of the investigation,with the rockmass mechanics and numerical simulation, the mechanism of roof falling of stope and mined out area on a large scale are discussed compendiously. 根据近几年对石膏矿山的现场调查,结合岩体力学的相关理论和数值模拟技术,对石膏矿采场顶板冒落及大规模采空区顶板冒落机理作了简要探讨,据此提出了预防采空区冒落的措施。
- Eraluating the mined out area is one of effective and dependable ways for exploring placer gold. 指出以过采区为依据寻找砂金矿可靠性大，风险度小，是行之有效的途径之一。
- The technical measures of the filling of mined out area employed in Dazhuangzi Gold Mine were introduced and an assumption to improve it further was put forward. 文中叙述了大庄子金矿井下采空区充填工艺,介绍了充填过程中的技术措施,并提出了进一步改进设想。
- Spacial location of mined out areas can be tested,which will guide next designing work. 通过现场钻探验证,揭示采空区的空间位置,对下步设计工作具有指导意义。
- Experimental study on detecting and controlling the height of overburden rock damage of goaf of large scale mined area under the Xitian River 大采空区覆岩破坏高度测控试验分析
- The powerhouse was trace out accurately later on a large scale map. 后来发电站被精确地描画在大比例地图上。
- The next year the work went ahead on a large scale. 第二年这项工作就大规模进行了。
- This district grew cotton on a large scale. 这个地区过去大量种棉花。
- After the whole area had been mined out,all the miners have left. 整个地区的矿全都挖光后，所有的矿工就都离开了这里。
- Improvement of Relayed Drainage System of Large Scale Mine Submerge Motor Pump 大型矿用潜水电泵接力排水系统的改进
- After the whole area has been mined out, all the miners have left. 整个地区的矿全都挖光后，所有的矿工就都离开了这里。
- They are preparing for war on a large scale. 他们正在大规模地备战。
- Large scale industry emerged only gradually as technology evolved. 大工业只是随着技术发展而逐渐开始存在的。
- Obm needs a large scale war to get out this mess. Unfortunately he is not as lucky as 罗斯福 or 布什。
- mined out area 采空区
- Development and application of the computer system for spare parts management in large scale mine 大型矿山备件管理计算机系统的开发及应用
- LOCATION PREDICTION APPROACH FOR SUCCEEDING RESOURCES IN LARGE SCALE MINE AND ITS SIGNIFICANCE 大型矿山接替资源定位预测的途径及其研究意义
- A work of art made by altering an area of land or a natural geographic feature, especially on a large scale. 地景艺术品一种通过改变某一地区的土地或自然地理景观而制成的艺术品，尤指改变很大范围
- We've been carrying out water conservancy work on a large scale. 我们进行了大规模的水利建设。
- he geological hazards by abandoned coal mine woring in Mentougou region is very serious.In this region,high-resolution earth resistivity method has been used to detect the old mined out area. 针对门头沟区采空灾害十分严重的情况，采用二维自动地电阻率方法进行探测。
