To meet the needs of coal fall down mining technology, the technical reformation have been made on 6mg200w shearer and therefore it can use in the big seam Angle, more ore and seam broken condition.
为了满足轻型放顶煤开采的需要，对6MG 2 0 0w型采煤机进行了技术改造，使其适应工作面倾角大、夹矸断层多的工作条件。
In Australia, environmental groups have repeatedly halted trainloads of coal headed to the export docks at Newcastle this fall.
在澳大利亚，环保组织今年秋天在纽卡斯尔不停阻拦了数车皮运往港口的煤炭。
Now, coal reserves are piling up in warehouses and ports as prices fall because of declining demand related to the global economic slowdown.
如今，全球经济减速带来的需求下降令煤炭价格出现了下跌，仓库和港口也积压了大量煤炭。
Abstract: with the mine production mechanization degree unceasing enhancement, as a traditional method of coal blasting fall coal mining machinery has gradually be replaced.
摘要：随着煤矿生产机械化程度的不断提高，作为传统采煤方法的爆破落煤已逐渐被机械采煤所代替。
U. S. emissions were projected to fall by 1.7 percent in 2016, also driven by declines in coal consumption, to the study published in the journal Earth System Science Data.
根据《地球系统科学数据》努力斗争的千哭报告，美国的碳上钻孔弄干净在2016年也将下降1.7%，颇翻由于煤炭消费量摇晃。
A fall in coal prices, caused by a glut of gas, is cutting energy bills, whereas still-high oil prices discourage firms from trucking in cement over long distances, preserving local oligopolies.
天然气供过于求造成的煤价下跌使能源费用有所下降； 不过，水泥公司碍于依旧高企的油价难以长途运输水泥，各地水泥市场仍是本地厂商垄断的局面。
The II3123 face is a light type caving face of three-soft coal seam. the roof is cracked, sloughing and roof fall often occur.
前言： 石台煤矿II3123工作面为“三软”煤层轻放工作面，顶板破碎易掉，片帮、冒顶时常发生。
The conclusion is that the stratum pressure would fall when the temperature increased, and the temperature field has a negative influence to coal-bed methane output.
得出了随着温度的升高煤储层的压力在降低，温度的升高对煤层气的产量有着负面的影响这一重要结论。
Introduce the grouting reinforcement method of the soft rock of coal bin and fall area and analyze the fall reasons and the grouting result.
介绍了煤仓软岩及冒落段预注浆加固方法，分析了冒落原因及注浆效果。
And he also explained the exterior influence factors of the coal seams spontaneous combustion by analyzing the ventilation, the rain fall, the air temperature and the digging.
通过对通风、降雨、气温、挖掘等的分析，论述了煤层自燃的外部影响条件。
Considering the very short particle residence time in the free-fall reactor, air was directly used as carrier gas to study the fast pyrolysis and sulfur evolution of coal under oxidizing atmosphere.
充分利用煤颗粒在自由落下床反应器中停留时间短的特点，直接用空气做载气，对自由落下床反应器中煤在氧化性气氛下的快速热解行为和硫的变迁进行了研究。
The loss should not fall on the coal company who provided for this very risk contractually.
损失不应由公司承担，其规定了这一风险。
The loss should not fall on the coal company who provided for this very risk contractually.
损失不应由公司承担，其规定了这一风险。
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