查询词典 coal mine

haizhou open-pit mine is china's largest opencast coal mine.

小 海州露天矿是我国最大的露天煤矿。

According to the concerned rules in 《safety regulations of Coal Mine》 author derived formulae to determine the overwind height, so a theoretical basis for mine hoist design was provided.

目前各种资料对此均无明确规定，作者根据《煤矿安全规程》的有关规定，导出了过卷高度的计算公式，为矿井提升机设计提供理论依据。

For maintenance convenience,many electric switch es for mine are adopted pinboard construction in order to reduce effect of coal mine production.

为了维修方便，许多矿用电气开关采用插接式结构，以减少对煤矿生产的影响。

This paper studied the plotting of the hazard zone of Wulong mine's rockburst. This paper used ANSYS program to set up model then put up stress analysis. Taking the 311 working face of Wulong coal mine as an example, the contours of vertical stresses in the roof and floor are obtained corresponding to the mining distances of 100 m ,200 m ,300 m and 400 m respectively.It is indicated that the magnitude of vertical stress is the important influencing factor of rockburst.

用ANSYS建立模型进行应力分析，通过模拟开采3311，3l1，213工作面得到了推采距离为100、200、300及400 m 时的顶底板y向应力等值线图，指出顶板y 向应力大小是判断冲击地压是否发生的重要因素，当开采l00 m 和400 m 时工作面迎头位置产生高应力集中区，极易发生冲击地压事故。

In coal mine, the measuring of the stress of steel cable caused by hoisting bucket is affected by various factors, and is vital to secure mine production.

提升罐笼的钢丝绳所受的拉力受各种因素影响，是影响煤矿安全生产的关键因素之一。

This design on the main Nanshan coal mine methane drainage occurrence, the necessity and feasibility, drainage methods to determine the expected effect, as well as drainage, etc; and the elaboration of natsun mines in accordance with specific parameters on mine, some of the roadway and workface, drivage workface for gas drainage.

本设计主要对南山煤矿矿井瓦斯赋存情况、抽采的必要性及可行性、抽采方法的确定以及抽采效果的预计等进行相应的阐述；并根据南山煤矿的具体参数，对矿井的一些巷道及采煤工作面、掘进工作面进行瓦斯抽采。

On the basis of reorganization statistics and mapping analysis of geological structure data from exploration, mine building and mining, the author has systematically summarized the development features, combination and distribution regularities of geological structures in mined area, and carried out forecast of geological structures in unmined area in Xiangshan coal mine.

摘要： 通过对象山井田勘探、建井及采掘生产以来的地质构造资料进行整理、统计和作图分析，系统总结了已采区断层构造的发育特征和展布组合规律，并对井田未采区的地质构造进行了预测。

Acylvanadium sulfate is prepared by mixing coal mine containing vanadium, fluorite mine and sulphuric acid, then pumped in the reactive tank, further chemical combination and dissolving, acylvanadium sulfate enters in solution, qualified vanadic oxide is prepared.

本方法是将含钒石煤矿、萤石矿和硫酸调浆后，泵入反应槽中，进行化合和溶解，生成硫酸酰钒而进入溶液，经液固分离后得到含钒浸出液，浸出液经采用铁屑还原、氨水中和、萃取、反萃、氨水沉钒、煅烧等成熟工艺处理后，便产出合格五氧化二钒。

For example, Petroleum exploitation (Mine is called " The earth blood "), mine exploitation (Coal is called " The earth bone structure "), gas company (Gas is called " The earth pulse ") and the ocean fishing field.

如石油开采，矿山开采（我们称矿山为地球结构骨架），煤炭开采，天然气公司（我们称天然气为地球气脉），海洋捕渔业。

This article introduces the application of BGP 9L —6A mine flame proof vacuum breaker used in coal mine,analyzes the excellences and defect of the breaker,points out the problem existing in use,dissertates the improvement method aganst the problem.

介绍了BGP9L— 6A 矿用隔爆真空断路器在煤矿井下的使用情况，分析了其优缺点及存在的问题，并提出了改进方法。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。