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The polishing fluid is composed of Al2O3 micropowder with a grain diameter of 0.5-1.0 mum, coal oil, lard, plant oil and spindle oil, wherein Al2O3 micropowder is abradant, coal oil is solvent, the mixing liquid of lard, plant oil and spindle oil is as additive; and the polishing fluid is prepared by a mixing liquid which is composed of 2% lard, 2% abraser, 8% plant oil and spindle oil by volume and 88% coal oil. The polishing fluid can produce the H62 brass element with a uniform surface quality and a good surface roughness value up to 0.008 mum, has the characteristics of no eroding elements, effectively relieving mechanical score, good processing surface quality and can be used for decoration of the plastic metal material and surface polishing process before the material metallographic microscope analysis.

抛光液由粒径为0.5～1.0μm的Al 2 O 3 微粉、煤油、猪油、植物油和锭子油混合而成；其中Al 2 O 3 微粉为磨料，煤油作溶剂，猪油、植物油和锭子油的混合液作添加剂；抛光液按体积比由2％的猪油、2％的磨料、8％的植物油和锭子油的混合液、88％的煤油配制而成；该抛光液能够加工出表面质量均匀，表面粗糙度值达到0.008μm的H62黄铜工件，具有不腐蚀工件、有效缓解机械刻划作用、加工表面质量好的特点，可以用于塑性金属材料的外观装饰性加工，以及材料金相分析前的表面抛光加工。

Based on a systematic study and analysis of the geology and coal seam self-combustion mechanism of the Rujigou coal mine in Ningxia,this paper deals with the feasibility of applying remote-sensing technique to realizing the rapid and precise detection of the coal fire distribution and the construction of the coal fire early warning and surveillance system.

以宁夏回族自治区汝箕沟煤矿区为例，在系统研究和分析矿区地质、煤层自燃机理的基础上，探讨了应用遥感技术实现快速、精确探测煤田火区分布，构建煤火预警与监测体系的可行性。

By analyzing the influential factors of outburst in coal roadway, an important conclusion has been reached that the outburst danger of coal roadway depends on the distribution of outburst indexes in coal seam ahead of working face, not on the tested value of one point in coal seam.

通过分析煤巷工作面的突出影响因素，得出了煤巷的突出危险性并非决定于煤体内某一点的值、而是决定于工作面前方煤体内突出危险值的分布状态的结论。

The fast development of our economy has raised new and higher orders to the following aspects: the need of coal, the resources and environment of coal, safe productions in coal mines, mineworkers diathesis and etc., especially, the problem of the safe production in coal mines has become the social focus.

我国经济高速发展对煤炭需求、煤炭资源和环境、煤矿安全生产、煤矿职工队伍素质等都提出了新的和更高的要求，尤其是煤矿安全生产问题已成为社会的焦点。

The types of product in the Australia coal mine are hard and semi-soft coking coal, which are the shortage coal products in the international coal market.

该类型的产品在澳大利亚煤矿很难和半软焦煤，这是缺少煤炭产品在国际煤炭市场。

In this paper, the mechanisms of the generation, migration and production for coal seam gas are researched and the geological model for coal seam gas reservoir simulation is presented, according to the theories and methods of coal seam gas geology, petroleum geology and dynamic of fluids through porous media. A three-dimensional, dual-porosity, two-phase, pseudo-steady, non-equilibrium sorption mathematical model is established with the help of petroleum reservoir numerical simulation method. After that, this complex mathematical mode is approximated and solved by finite-difference and fully implicit methods. Coal Seam Gas Reservoir Simulation software in 1. 0 version (CSGRS 1. 0) with Chinese interface of pre-and post-processing function is developed.

本文应用煤层气地质学、石油天然气地质学和渗流力学等学科的理论和方法，研究了煤储层中煤层气的生成、储集、运移和产出机理，概化出了煤层气储层模拟的地质模型；以油气藏数值模拟和数值计算方法为工具，建立了描述三维、双孔隙、非平衡吸附、拟稳态条件下气-水两相流体混相运移规律的煤层气储层模拟的数学模型；详细推导出了该数学模型的全隐式求解方法；并借助计算机技术开发了具有中文操作界面的煤层气储层数值模拟软件CSGRS 1.0，实现了这一复杂数学模型的数值求解。

An introduction was made to the dry distillation process of coal, anti-metal penetration mechanism of coal dust and influences of various physical-chemical properties of coal dust on its anti-metal penetration ability, view points on coal dust choice and choice methods.

介绍煤的干馏过程、煤粉在型砂中的防粘砂机理和煤粉的各项理化指标对其防粘砂能力的影响，以及选择优质煤粉的观点和方法。

An introduction was made to the dry distillation process of coal, anti-metal penetration mechanism of coal dust and influences of various physical-chemical properties of coal dust on its anti-metal penetration ability, view points on coal dust choice and choice methods.

摘要介绍煤的干馏过程、煤粉在型砂中的防粘砂机理和煤粉的各项理化指标对其防粘砂能力的影响，以及选择优质煤粉的观点和方法。

This research take Yunnan maitreya brown coal as raw materials,adopt low-temperature dry distillation to go on the treatment of charing to the brown coal ,make most moisture and volatile matter gasification of brown coal remove to get half brown coal burnt.

以云南弥勒褐煤为原料，采用中低温干馏对褐煤进行炭化处理，使褐煤中的大部分水分和挥发分气化除去得到褐煤半焦。

This year, in the "largest port led to large logistics" of the development strategy, the big push forward the construction of the coal terminal, are: Huaneng Power Plant Haimen 150,000-ton coal pier and richness of plant Haimen 70,000-ton coal terminal building synchronization advance; Masan Port 35,000-ton coal terminal expansion project is also speed up the process.

今年来，在&以大港口带动大物流&的发展战略中，当局大手笔推进煤码头建设，有：华能海门电厂15万吨级煤炭码头和丰盛海门电厂7万吨级煤码头的建设同步推进；马山港区3.5万吨级煤码头扩建工程建设也在加快进行。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。