查询词典 mining

Open-pit mining. That in the open air conditions, the shallow depth of the ore from open pit mines, open pit slopes for open pit or strip mining ...

露天开采。即在露天条件下，将埋藏较浅的矿石，从矿坑露天矿、山坡露天矿或剥离露天矿进行开采。。。。

Hence mining technicians can conveniently conduct mining design such as tunnel design, stope design, drill hole design.

使得采矿技术人员可以很方便地在三维数字矿山模型上直接进行巷道设计、采场设计、炮孔布置等采矿设计。

We specialized in the products: protection chain of loader: ZL20 30 40 50 60 80 90 etc, and protection chain of truck: 900, 1000, 1100,1200, to protect tyre on the job under the adverse industrial and mining condition: cubic meter project, stone pit, mining area, tunnel project, train construct, etc.

我公司专业生产的ZL20 30 40 50 60 80 90 等装载机保护链，900、1000、1100、1200载重汽车保护链，在土石方工程，采石场、矿山、隧道工程、铁路建设等恶劣工矿条件下作业对轮胎的保护。

The text obtains some data that caving span of immediate roof is 30m, caving span of main roof at first weighting is 42m and caving span of main roof at periodic weighting is 14m. Mining influence range is determined about 40m through numerical modeling, namely about three advance pillars were in the range of mining influence.

利用数值模拟得出煤柱采场直接顶的垮落步距为30m，老顶的初次来压步距为42m，老顶的周期来压步距为14m；通过模拟超前支承压力，确定了采动影响范围约为40m，即采场超前的三个煤柱都在影响之内。

Fenghuangshan non-ferrous metals mining industry, written history can be traced back to the Song Dynasty. 600 years ago in the Ming Dynasty, silver mining factory worker reaches up to 3,000 people,"Kim Doo-sun", said.

凤凰山有色金属开采业，有文字记载的历史可追溯到宋代。600年前的明代，白银厂采矿工人最多时达3000多人，有&日出斗金&之说。

The significance of setting up non-gratuitous mining rule,the property of the compensation fee and controlling function of economic measurements in protecting and reasonably mining and utilizing of mineral resources have been stated.

阐述了建立矿产有偿开采制度的重要意义和矿产资源补偿费的性质，以及经济手段对有效保护和合理开发利用矿产资源的制约作用。

Coal plants put into operation for fully mechanized mining equipment, machine boring machine, shearer, hydraulic support, hydraulic pillar reprint machines, scraper plane, belt machine, crushing machine, such as machinery and equipment repair and parts processing, and strive to become the northern part of Shanxi Province the largest coal-machine parts and repair store base, while at the same time enhance the Mine mining transportation equipment parts and repair capacity of processing capacity.

厂房投产后用于煤机综采设备的掘进机、采煤机、液压支架、液压支柱、转载机、刮板运输机、皮带机、破碎机等机械设备修理及配件加工，力争成为山西北部最大的煤机配件超市及修理基地，同时不断提升矿山采掘运输设备配件加工能力及修理能力。

2207 Face of Chensilou Coal Mine,summarize the difficulty and the key point of the safety management of full-mechanized mining face with high inclined compound roof ,adopt countermeasures to guard against the support crooked and guard against the scraper conveyer and mining machine to glide down.

通过对陈四楼煤矿2207工作面回采，总结出大倾角复合顶板综采工作面在防煤飞出工作面伤人、防支架歪倒、防刮板输送机上窜下滑、防采煤机下滑等安全管理方面的重点和难点，及采取的对策和措施。

Based on the geological and mining conditions and occurrence characteristics of loose aquifer of Xinglongzhuang Colliery,water bursting cause of 4303 full-mechanized caving mining face under loose aquifer was analyzed,the prevention measures of the 3rd aquifer and reasonable dimension of coal pillar for sand proof were discussed in this paper.

根据兴隆庄煤矿地质采矿条件，结合松散含水层赋存特征，分析了四采区4303综放工作面第四系松散含水层出水的原因，探讨了防治三含水的技术途径和留设防砂煤柱的合理尺寸。

Based on the geological and mining conditions and occurrence characteristics of loose aquifer of Xinglongzhuang Colliery,water bursting cause of 4303 full-mechanized caving mining face under loose aquifer was analyzed,the prevention measures of the 3rd aquifer and reasonable dimension of coal pillar for sand proof were discussed in this paper.

通过对梅河四井溃泥工作面覆岩破坏特征和顶板岩层状态的探测分析，结合离散元数值模拟手段，模拟了不同状态顶板条件下水平分层综放开采的顶底板位移场和破坏场，探索了溃泥、溃砂发生的成因和机理，丰富了水体下采煤的理论和技术体系。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。