可开采的

The case of inclined longwall and overhead mining at 31005 face in Zaozhuang Coal Mine and technical manage measures are introduced.

介绍了查庄煤矿在31005工作面使用倾斜长壁仰斜开采的情况及技术管理措施，对相似条件下此类采煤法的使用提供了可借鉴的经验。

A space in the depths of the planet can be found on the exploitation of the mineral content of such elements the only place.

在太空深处的一颗行星上发现了可开采含这类元素的矿产的唯一地点。

Below a lot of circumstances, as a result of a variety of reasons this kind of ore does not have large-scale exploitation, because these ore contain prussiate but the copper of dissolve is mineral, reduce gold substantially thereby reclaim rate, raise the wastage of prussiate substantially, and the cost that raises follow-up processing.

在很多情况下，由于多种原因这类矿石并没有大规模开采，因为这些矿石含有氰化物可溶的铜矿物，从而大幅度降低金的回收率，大幅度提高氰化物的消耗量，以及增加后续处理的成本。

A series of profile numerical simulation are based on the datas of core flooding experiment, including the homogeneous profile positive rhythm section, the rhythm section, interlining profile, interlayer heterogeneity section, intraformational heterogeneity of reservoir section, the actual reservoir simulation. The the section of displacement mechanism of core flow method and the datas of core flooding experiments take into account, the EOR scheme of later stage is CO2 preslug followed by the N2 slug flooding, at last is the waterflooding or depletion type of drive..

为了进一步分析注CO2／N2段塞驱对扫油效率的影响，在岩芯驱替实验的基础上对N2推进CO2段塞驱进行了均质剖面、正韵律剖面、反韵律剖面、隔层剖面、层间非均质剖面、层内非均质剖面、实际油藏剖面的数值模拟研究，通过对比研究，初步认为高11油田在开发中后期提高采收率技术上可选取在适当高的压力条件下，先注前置CO2段塞驱，后续再注N2段塞顶替驱，然后再转注水或衰竭开采的驱替方式。

By solving management model, the optimal groundwater withdrawal 〓 of the Wuwei Basin in two irrigation periods are obtained,〓 shows that the pumping condition of groundwater in the region can divided into six sub-regions: the pumping sub-region with maximum 〓 is located in the river courses; the sub-region with minimum 〓 in the spring overflow zone; and non-pumping sub-region in the 〓 irrigated districts and desert area, and that the unique way to crese groundwater pumpage is to pirate evapotranspiration in the oundwater evaporation zone.

通过管理模型的运转，获得了武威盆地平水年、枯水年、丰水年三个典型年份各灌期地下水的最优开采方案。按年最优开采模数，区域地下水的开采条件可分为六个区，地下水最强的开采区位于出山河流的主河道、石羊大河和洪水河沿岸，最弱的地区为泉水溢出带，河水谨区和沙漠区下开采地下水。同时表明，袭夺潜水蒸发量可增加地下水的开采量，该区现状条件下增加地下水的开采量的唯一途径是袭夺潜水蒸发带地下水蒸发量。

Vitriol mountain town alumstone exploits cost low , entire exploit be a strip mining, the ore may ascertain whose use , potasium sulphate , may produce alums , inferior may produce a swelling agent , early strong medium agent , accelerating agent first-class but giving birth to a child according to the grade.

矾山镇的明矾石开采成本低，整个开采是露天采矿，矿石可根据品位确定其用途，上等可生产硫酸钾、中等可生产明矾、下等可生产膨胀剂、早强剂、速凝剂。

Because the direct roof of the No.92 ore-body is the backfilling of the No.91orebody which is the cementing materials or non-cementing materials, and there are no-filled mined-areas in someplace. So there are large-scale hidden troubles on the top of the No.92 slowly inclined large and thick ore-body, then we must find a new mining technology which aims at the complex mining condition of the No.92 ore-body. The cutting nature of the No.92 ore-body is very poor, so choosing the rational drilling and blasting parameters and enhancing the overall technological economic benefits are also the urgent problems waiting to be solved in the exploitation of the No.92 ore-body. The No.92 ore-body, thin lodes and the exploitation process of the No.91orebody influence each other, the geo-pressure phenomena aggravates obviously in case of the mined-areas increase constantly, and the geo-pressure problem will be more and more serious when the No.92 ore-body be exploited on a large scale in the next step.

由于它的直接顶板就是开采91号矿体时的胶结或者非胶结的空区充填体，部分地段甚至是未充填的采空区，使92号缓倾斜厚大矿体的上部形成大范围的隐患区，因此，必须针对92号矿体复杂的开采技术条件，寻找新的采矿技术与工艺。92号矿体的可凿性极差，选择合理的凿岩爆破参数，提高凿岩爆破工作的总体技术经济效益，也是92号矿体开采急待解决的问题。92号矿体与细脉带、91号矿体开采相互影响，目前在采空区不断增大的情况下地压显现有明显加剧的趋势，在下一步92号矿体大规模开采时，地压问题将越来越严重。

For each strategy, a corresponding exploitation plan of groundwater was designed. Then each designed exploitation plan (except scheme 3) was put into the model for calculation and simulation. The analysis on the forecasting results every plan indicates that:(1) Shuting down the self-provided wells is the most direct and effective method, playing an important role in the land subsidence prevention.(2) The resumption of compressed soil by groundwater artificial recharge is limited. So the artificial recharge can\'t provide essential effect for the resumption of land subsidence, unless the artificial recharge is much more than the groundwater withdrawal.(3) The method of "adjusting the exploitation stratum of groundwater to the shallow" has an obvious effect on the land subsidence prevention.(4)"Sand wells" can increase the leakage recharge for confined aquifer, and thus can slow and prevent the development of the land subsidence.(5) For the groundwater exploitation in Xi\'an, emergency self-provided wells should be managed according to the well spacing of 1600m, 2000m and 1600m, respectively, in the river terrace area, alluvial-proluvial fan area and loess tableland area to exploit the first confined groundwater. Corresponding individual well yield can be set as 2500m~3/d, 1500 m~3/d and 200 m~3/d. Make emergency self-provided wells pump in the dry year and stop pumping groundwater to restore and conserve underground water sources in average years and wet years. In this way, groundwater withdrawal of 162000m~3/d can be obtained to provide for the supplement of water supply in Xi\'an. As a result, the water supply stress can be released in dry years. The groundwater depression formed in the exploiting year can resume in 3-4 years. At the same time, this exploitation manner will not lead to obvious land subsidence.

本文利用所建的模型预测了现状开采条件下未来20年的地下水位和地面沉降的变化，在此基础上，提出了防治西安市地面沉降的五个地下水开采方案，利用所建的地面沉降模型对各个设计方案其进行了模拟和预报，对预测结果的分析表明：①封停自备井是防治地面沉降最为直接和最有效的对策，对防治地面沉降起着最为积极的作用；②采用人工回灌方法使被压缩的土层得到的恢复是非常有限的，对地面沉降不能起到根治作用，只有回灌量明显大于开采量时才能有一定的效果；③&调整开采层次，在浅层取水&对防治地面沉降的效果十分明显；④布设&砂井&可以增加对承压含水层的越流补给量，从而可以有效地缓解和控制地面沉降的发生和发展；⑤对西安市的地下水开采，可在河流阶地区、冲洪积扇区和黄土塬区分别采用1600m、2000m、1600m的井间距布置应急自备井，分别采用2500m~3/d、1500 m~3/d和200 m~3/d的单井开采量，开采第一承压水，在平水年或者丰水年不开采，涵养地下水源，在枯水年启动这些应急自备井开采，在输出分析范围内共可获得162000 m~3/d(5913万m~3/a)开采量，可以有效地补充西安市的供水水源，缓解供水紧张局面，开采年开采导致的下降的水位可在停采3～4年后得到基本恢复，同时，这种开采方式不会造成大的地面沉降量。

The company is a technology research and development-oriented modern enterprises, and scientific research institutions at home and abroad over a broad operational cooperation, the introduction of foreign advanced technology company's technology is also a conventional business, silver, as a non-renewable resources is now very scarce, Experts said the silver mining can be only 10 years of reserves, to find a substitute for silver is imminent, I replace Secretary silver products are in preparation....

本公司是一家以科技研发为主的现代化企业，与国内外多家科研机构有广泛业务合作，引进国外先进科技技术也是公司的一项常规业务，银作为一种不可再生资源现已相当匮乏，专家称银的可开采只有10年的储量，寻找银的代替品是迫在眉睫，我司银代替产品正在筹建中。。。。

In order to popularize the modern mining equipment, we do a lot of work. Now our apparatus is the most systematized, including wire saw machine, rock driller, rock cutting, wire saw beads and so on. Our company can offer to domestic mining owner from mine layout to mine exploit plan, and from equipment to the exploit teams.ISI: Thank you so much.

我们为推广采矿现代化设备，做了大量工作，目前我们的设备最为系统化，包括绳锯机，潜孔钻，荒料整形机，重型轻型高速钻机，金刚石串珠绳锯及各类配套易耗品，目前公司可为国内采矿业主提供从矿山规划到开采方案，从开采设备到开采队伍等一体化专业服务。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。