煤

Based on the synthetic geological analysis of the first mining district, the distribution information for magmatic rocks and thin layers in coal-bearing series was forecasted.

通过对煤矿首采区的岩浆岩及煤系进行的综合地质分析，利用测井约束反演技术实现了岩浆岩与煤系的薄层分布信息预测。

Because the geological conditions and the tectonic activity of coal-bearing basin are complexity in our country, there is a unique gas production mechanism and discipline of coalbed methane, while there is no theorem of gas production mechanism and discipline of coalbed methane formed by systematic analysis at home and abroad.

由于我国地质条件和含煤盆地的构造活动复杂，存在着独特的煤层气产气机理和产气规律，而国内外也没有形成系统地分析高阶煤产气机理和产气规律的理论。

Based on the rock type of coal-bearing formation ,the key factors to control rock mechanics properties ,such as lithological characters ,in-situ stresses, and moisture, are systematically analyzed.

基于含煤岩系主要岩石类型，系统分析了决定岩石力学性质的主要控制因素如岩性、地应力和水，探讨了不同岩性岩石在不同侧压和不同含水条件下的力学特征，分别建立了含煤岩系岩石力学性质与岩性、地应力和水等主要控制因素之间的定量关系。

Coal-bearing formations in upper Paleozoic were well developed in Jiyang area ,and this is essential for scale accumulation of coal-genetic gas.

济阳地区煤系有机质二次生烃特征及勘探思路煤成气是一种重要的天然气资源，济阳地区上古生界煤系地层广泛分布，是煤成气形成规模聚集的基础。

Combining with the situation of the westren district of Jincheng Coal Mine, this paper analysed the influence of the design parameters of the helix roller in coal-cutting machine on practical effect, then put forward some improving measures.

结合晋煤集团西区煤质状况，分析了影响采煤机滚筒使用效果的设计参数，对提高块率、装煤效果、构强度提出了改进措施。

Mine workers move coal to be processed in Shenmu, which is one of the biggest coal-producing cities in China.

煤矿工人正在陕西神木市运煤，这是中国最大的产煤地之一。

In the paper,the alternative characters of current electric conduction of rock-coal porous medium with gas are studied.

开展煤岩多孔介质及其充瓦斯后电性质的研究，对煤与瓦斯动力灾害的有效预防及煤层气的勘探开发具有重要的意义。

The results show that the mill current and particle filling increased with the coal feed flow when ventilation rate remained the same, mill current started to decline after rising to a peak, the beginning of the decline region corresponded to the optimal particle filling, at this point, the gap between balls were just full of coal particles, the mill was running close to maximum power, and grinding efficiency reached the highest.

研究结果表明，磨煤机通风量不变时，随着给煤量增加，磨内存煤量增加，磨煤机电流升高，电流上升到峰值后又有所下降，开始下降的区域对应的料位是最佳运行料位，此时，钢球间隙中刚好充满了煤粉颗粒，磨煤机接近最大功率运行，粉碎效率达到最高。

The study of impact of dirt band on top coal drawing mining;2. The paper has studied the caving characteristics and technology on the fully-mechanized caving mining working face in structural complex thick seam containing dirt band are studied.

通过对综放工作面含夹矸结构复杂段顶煤放出特征和放煤工艺的研究，提出选择两刀一放单轮间隔放煤方式，有利于提高煤炭回收率，降低原煤含矸率。

The study of methane-accumulation prevention and methane drainage theory and technology is the key for solving the problem of mine methane explosion accidents while the study of coal and methane outburst prediction together with the preventive measure sand technology is the basic guarantee to the controlling of coal and methane outbursts.

防止瓦斯积聚与瓦斯排放理论及其技术的研究，是解决矿井瓦斯爆炸事故发生的关键所在，而研究煤与瓦斯突出的预测及其防治措施技术是控制煤与瓦斯突出发生的根本保证。本文根据上述两方面存在的瓦斯问题，以理论、实验、计算机数值模拟和井下试验相结合的方法开展研究工作。

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％。