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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。
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。
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。
Open mined - out area 露天采空区
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。
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。
mined out area 采空区
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。
The mining of ore or coal from an open mine. 从敞开的矿井开采矿石或煤。
Statistical analysis of the character of acoustic emission for nonlinear dynamical damage in mined out areas supported by composite rock materials 岩石基复合材料支护采空区动力失稳声发射特征统计分析
An open mine (usually for coal) where the seams run close to the surface. 接缝连接表面的露天矿藏。
Keywords Mine areas;mined out areas;complicated physical exploration;drilling;Zhangqiu in Jinan city;Yuegongqiao; 矿区;采空区;综合物探;钻探;月宫桥;济南章丘;
The chief purser assigns out area of responsibility. 乘务长给我们分配责任区域。
I rest under shade trees and dug out areas. 我在树荫下休息并掘地。
And the solutions in boulder are proposed Which have good references to improving blasting effeCt for open mine. 对露天矿爆破及改善爆破效果有一定的参考价值。
mined out areas 采空区
On the basis of the analysis of rock's dynamic feature, an analysis is made of the slope dynamic response caused by mine earthquake in Fushun Western Open Mining Area. 摘要在分析岩石动力特性的基础上，对抚顺矿区由矿震导致的西露天矿边坡动力响应进行了分析。
The lead-zinc resources related to the Qianlishan granite body in the Dongpo orefield has been mined out. 东坡矿田内与千里山岩体有关的铅锌矿产资源已近枯竭,必须对这些矿区的深部进行成矿预测,寻找可接替矿产资源。
Rippol has also launched a new content section called “Buzzy” which are videos that were data mined out of social networks. 朋友没搭理这个不要脸的人，没几天书出来了，推荐语上赫然写着这句话，而且署名是朋友的名字。