查询词典 coal

5It is the first time to brought forward the idea that the relieved methane in protected coal seam and the goaf of the near coal seam is exploited according to drilling assurgent hole from the roof of the entry retaining.

运用煤层气卸压抽采原理，成功地在淮南矿区顾桥矿实施了地面钻井和留巷钻孔法抽采卸压煤层气的工程实践，初步建立了适合淮南矿区的卸压煤层气抽采模式。

These vacant jobs in oil, coal, and gas are likely to attrite; coal mining already becoming defunct in the early 21 st century.

这些空置的工作在石油，煤和天然气很可能就流失了；煤矿已经成为倒闭在21世纪初。

By analyzing and comparating of every kinds of coal balter equipments,based upon the as-sets of the fluctuating balters and roller balters,a new kind of coal balter- fluctuating roller balter was designed and installed.

通过对各种筛煤设备的分析比较，根据波动筛和滚轴筛的优点，设计安装了一种新型筛煤设备——波动滚轴筛，并介绍了波动滚轴筛的特点和技术改造方案。

Had appeared to replace firewood bavin with coal on human history, replace coal with oil, natural gas, with but the process that second birth the sources of energy replaces mineral the sources of energy.

在人类历史上已经出现过用煤炭替代薪柴，用石油、天然气替代煤炭，用可再生能源替代矿物能源的过程。

ABSTRACT This paper summarized the study and application state of the technology on coal dry beneficiation with common fiuidized bed and vibration fluidized bed , elaborated the theoretical basis that VFB can beneficiate fine coal.

本文综述了普通流化床干法选煤技术及振动流化床技术应用与研究的现状，阐述了振动流化床分选细粒煤的理论依据。研究了适合于细粒煤分选的振动流化。。。

Analyzed the causes of "2.22" gas explosion disaster at Tunlan Coal Mine which led the death of 78 people.It was the breezeless condition of No.1 crossheading at 12403 working face in the coal mine's southern No.4 panel region that made the local gas accumulated to the explosive concentration.It was the electrical switch which lost its explosionproof ability in No.1 crossheading that ignited the gas.

分析了死亡78人的屯兰煤矿&2.22&特别重大瓦斯爆炸事故原因：该矿南四盘区12403工作面1号联络巷处于微风无风状态，造成瓦斯局部积聚达到爆炸浓度，1号联络巷内的电气开关失爆，引爆瓦斯。

In this thesis, considering some different coal quality, the combustion regularities of pulverized coal in calciner in more details are researched.

本文结合不同煤质，深入研究了煤粉在分解炉内燃烧过程的一些重要规律，它对于指导分解炉的设计与操作，具有重要的现实意义。

Besides, because of degree of pulverized coal combustion has direct effect on operation of calciner, ignition temperature and combustion ending time of coal have become key parameters of designing and operating calciner.

同时由于煤粉燃尽程度直接影响到分解炉的运行，因此，煤的着火温度及燃尽时间已成为分解炉设计与操作的关键参数。

For ensuring reasonable use of low-volatile coal in calciner, it is necessary to make full understanding of interactions between burning performance of coal powder and decomposition procedure of calcium carbonate.

分解炉中煤粉燃烧是在与碳酸钙充分混合的环境中进行，燃烧工况与一般的煤粉燃烧设备有很大差别，为此，要保证低挥发分煤在分解炉内的合理使用，必须全面了解煤粉燃烧特陛及其与碳酸钙分解过程的作用关系。

In this reaserch, the combusion characteristics of coal in the special circumustance of calciner have studied, involving the catching fire properties, kinetic features of combussion and interaction of coal with CaCO〓 etc.

本研究对煤在分解炉内的燃烧特点进行了研究，根据煤在分解炉中燃烧的环境和特殊条件，对煤的着火特点、燃烧的动力学特性、煤与碳酸钙的相互作用等进行了分析和研究。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"