查询词典 coal mine

The actual distribution of unload zone of coal seam ahead of working face can be shown by continuously testing the initial gas flow from coal seam during hole drilling, which can be used to forecast the outburst danger of coal roadway.

连续测定钻进过程中的初始瓦斯流量可以反映工作面前方卸压带的实际分布，从而准确地预测煤巷的突出危险性。

It was shown that coal seam floor failure depth of working face 2121 was 32.5 to 5 m, approximately three times as deep as that of shallow working face(in genera l,9.15 to 12.0 m). Coal seam floor failure depth increased with mining depth. Potential risk of water inrush through coal seam floor of working face 2121 is much higher for deep mining than for shallow mining.

试验结果表明：该工作面底板破坏深度为32.5~35 m，比300 m采深以内的工作面实测深度(9.15~ 12.0 m)增加2倍以上，说明随着开采深度的增加，煤层底板采动破坏深度呈明显增大的趋势，因此，在水压和破坏深度二者同时增加的条件下，2121工作面深部煤层开采的突水危险性远远大于浅部煤层。

At last, the rational mining method is determined as the staggered layout of coalface in the upper and the lower coal seam, with the upper coal seam is mined first and the lower coal seam is mined with the whole height.

计算机数值模拟与现场实践表明，7煤与9煤的工作面成交错布置方式，先采7煤后采9煤，一次采全高，最有利于9煤工作面的顶煤冒放，保证9煤综放开采的成功。

In this paper, the physico-natures of Taixi coal,Baoqiao coal, Daanshan coal and coke powder, such as volatility, reactivity, ignition point and dry distillation rate, were studied under laboratory condition.

对宝钢以煤代焦烧结可使用的四种固体燃料：太西煤、宝桥煤、大安山煤及焦粉的理化性能，如挥发性、着火点、反应性及干馏速度进行了测定和比较。

Currently, in order to control gas and enhance CMM recovery, various methods are adopted in Jixi Coal Mining Area such as upper roadway CMM drainage of low-permeability coal seams, upper near-horizontal hole drilling, coal seam plus-angle hole drilling, and roof large-diameter horizontal hole drilling, with satisfactory drainage results.

目前矿区为治理瓦斯，加大煤层气抽采，采用低透气性煤层的高位巷道抽采、高位钻场近水平钻孔、煤层钻场仰角钻孔抽采、顶板大直径水平钻孔等抽采方法，取得了良好的抽采效果。

Shuangbai County teak coal mine rock Adit sub-head coal and gas outburst accident occurred.

双柏县麻栗树煤矿岩子头矿井平洞发生煤与瓦斯突出事故。

Analyzed the condition of coal-mine explosive malfunction in China, and researched the passivation mechanism of coal-mining emulsion explosive and delay electric blasting cap, and discussed the avenue of researching the permitted emulsion explosive with the function of shock resistance.

分析了我国煤矿的爆破异常情况，研究了煤矿许用乳化炸药和毫秒延期电雷管的动压特性，对爆破异常机理进行了较全面的阐述，并通过耐压型乳化炸药的研制探讨了预防和减少爆破异常现象的技术途径。

However, the coal bunker channeling warehouses in China coal mine accidents occur frequently.

它可以有效地提高工作面采掘设备的利用率，充分发挥运输系统的潜力，保证连续均衡生产。

The paper introduced a coal level auto monitoring and control system suitable for a deep and small diameter coal bunker in underground mine.

介绍了一套适用煤矿井下深细煤仓的料位自动监控系统，它将单片机应用于系统控制并采用脉冲信号输入输出和光电耦合隔离等措施使控制系统具有较强的抗干扰能力。

Reciprocating to the installation of the coal bunker under mouth, in mine production, setting of a certain capacity of the coal bunker for ensuring consumer-Pinggu and high-yield, high-efficiency is very necessary.

往复式给煤机安装在煤仓下口处，在煤矿井下生产中，设置一定容量的煤仓对于保证消峰平谷和高产、高效是十分必要的。

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。