查询词典 nut coal

On the practice basis of fully mechanized sublevel caving of hard and thick coal, a discrete element software was used to do simulation test and influence of crack in process of mining coal on the top-coal caving and the development process of the fracture were analyzed, which could be used to determine the top coal caving characteristics.

分析了倾斜厚煤层顶煤裂隙和顶煤可放性的影响因素，在硬、厚煤层综采放顶煤现场实践的基础上，运用离散元软件进行了模拟试验，分析了煤层在采动过程中形成的裂隙对顶煤冒落的影响以及裂隙的发育过程，据此判断顶煤的冒放性。

On the basis of a study of Carboniferous coal measures in the northern foothills of the Dabie orogenic belt and by using the microscopic and ultramicroscopic techniques, the structural coal is subdivided into brittle-deformed coal and ductile-deformed coal.

以大别造山带北麓地区石炭纪含煤岩系为研究对象，利用显微及超微分析手段，将构造煤划分为脆性变形和韧性变形两大类。

The washability of coal in different coal facies is discussed using the density distribution of coal samples from Wuda coal mining area,Inner Mongulia.

对内蒙古乌达矿区主采煤层9煤层的煤岩学特征和煤相进行了分析，用煤样密度组成的煤岩学方法讨论不同煤相煤的可选性。

According to Washability Curve, we can see that coal is easy to coal, coal preparation plant required by jigging coal technology, according to the order of calculation of the various operating processes the quantity, quality, of water.

根据可选性曲线可知，原煤属于易选煤，按选煤厂要求采用跳汰工艺选煤，按流程顺序计算各个作业的数量、质量、水量。

Through analyzing on the components and self-ignite mechanism of raw coal in Datong Shangshenjian Coal Washery, this paper finds the reasons of the coal self-ignite , and works out some measures for preventing the coal self-ignite .

通过对大同上深涧选煤厂原料煤组成以及自燃机理的分析，找出了原煤自燃的因素，并制定了防止自燃的措施。

Coal-bearing seams in Shenyu mine area inclines northwest, the bedrock thickness on the coal seams increases northwest, and there are generally red soil water-resisting layer on the bedrock. To study on the coal-water friendly geological conditions for the water-resisting layer during the coal mining process, and to determine mining zones without causing obvious water table decline are an important approach to the water-conserving mining in the fragile ecological mine area of North Shaanxi.

榆神矿区含煤地层整体向北西倾斜，煤层上覆基岩厚度向北西方向增大，基岩之上普遍分布有红土隔水层，深入研究煤炭开采过程中不对含水层造成破坏的煤水共生地质条件，确定既可采煤、又可实现水位不明显下降的区域，是陕北生态脆弱矿区保水开采的重要途径。

Creosote is the name used for a variety of products: wood creosote, coal tar creosote, coal tar, coal tar pitch, and coal tar pitch volatiles.

焦油的名字被用于各种产品：木焦油，煤焦油焦油，煤焦油，煤焦油沥青，煤焦油沥青挥发物。

Tianchang characteristics of the industry, the industry first, calcium, calcium is abundant raw materials, the reserves of 200,000,000 tons, compared with the processing of calcium and active, the variety of products; Second, the coal industry, from the sale of raw coal to the coal industry in the country Leading a large flow of coal from out of Jingxing; The second is the diversification of agricultural and sideline products, Achillea distinctive red zone production, pheasant, Chaiji farming, breeding black-bone chicken, walnuts, pomegranates, such as planting Park; Fourth, the cultural industry , Folk art active.

天长的特色产业，一是钙产业，钙原料十分丰厚，储量达2亿吨，钙加工比较活泼，该产品多种多样；二是煤炭产业，从原煤销售到洗煤业都在全国首屈一指，很大流量的煤炭都从井陉流出；二是农副产品多样化，有特色红蓍生产区，有山鸡、柴鸡养殖，有乌鸡养殖，有核桃、石榴等种植园区；四是文化产业，民间艺术比较活跃。

Total reserve of mining area coal is in 100 million tons of above, it is Jiangxi saves one of 4 big companies yield coal, have 5 opposite to produce mine, main production is high grade soft coal, anthracitic wait industrial dynamical coal.

矿区煤炭总储量在一亿吨以上，是江西省四大产煤企业之一，现有五对生产矿井，主要生产优质烟煤、无烟煤等工业用动力煤。

Using self-made coal oxidation device,the low temperature oxidation experimental for brown coal,bituminous coal and anthracitic coal has been made.

利用自制煤氧化装置，对褐煤、烟煤和无烟煤进行低温氧化实验，结果表明，不同煤样，低温氧化产生的气体及温度不同，气体的生成量与氧化温度呈指数关系，其相关性很好；揭示了煤的低温氧化过程气体浓度与温度变化特征，提出多标志气体进行煤自燃早期预测预报。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？