查询词典 coal-black

This also means that China's coal prices in the short term, still be a high coal imports will slow pace of short-term.

这也意味着中国的煤炭价格在短期内依然将处于高位，煤炭进口步伐短期内不会放缓。

In this paper, hazard theory is combined with coal mine gas accident and coal mine hazard is put forward, analyzing gas accident hazard by the three class of hazard.

本文将危险源理论和煤矿瓦斯事故相结合，提出煤矿危险源这一全新概念，用三类危险源思想来分析瓦斯事故危险源。

The preparation methods of sulfonated coal and factors such as sulfonation time, sulfonation temperature and ratio of acid to coal etc.

试验研究了褐煤制磺化煤的制备方法及磺化温度、磺化时间、酸煤比等因素对产物磺化煤的离子交换活性的影响。

Shuangbai County teak coal mine rock Adit sub-head coal and gas outburst accident occurred.

双柏县麻栗树煤矿岩子头矿井平洞发生煤与瓦斯突出事故。

The influence of volatile content and admix ratio upon combustion performance of blended coal has been preliminarily analysed, it is suggusted that the equivalent volatile content value can be used as important basis for determining operational parameters during the time of burning blended coal.

采用热天平和一维火焰炉对单一煤及其混煤的着火、燃烧、燃尽以及结渣特性等进行了试验研究，初步分析了挥发分含量及掺配比对混煤燃烧性能的影响，提出等效挥发分值可作为混煤燃烧时确定运行参数的重要依据。

The results indicate that the surface area of coal is related to the coal particle size, the maceral content and the adsorbate used.

在上述工作基础上，选用孔隙结构发达的大雁褐煤作为原料，探讨了制备空分用炭分子筛的可能性。

At last, the rational mining method is determined as the staggered layout of coalface in the upper and the lower coal seam, with the upper coal seam is mined first and the lower coal seam is mined with the whole height.

计算机数值模拟与现场实践表明，7煤与9煤的工作面成交错布置方式，先采7煤后采9煤，一次采全高，最有利于9煤工作面的顶煤冒放，保证9煤综放开采的成功。

Take the 51201 big mining height coalface in Shangwan coal mine and the 32201 coalface in Bulianta coal mine as prototypes, the development processes of the overlying strata for these two types shallow coal face with big mining height are simulate, as the mining space increase.

分别以上湾煤矿的51201工作面和补连塔32201工作面为原型，模拟了随开采空间变化，这两类浅埋煤层大采高长壁工作面的采动覆岩导水通道的发育过程。

In this paper, the physico-natures of Taixi coal,Baoqiao coal, Daanshan coal and coke powder, such as volatility, reactivity, ignition point and dry distillation rate, were studied under laboratory condition.

对宝钢以煤代焦烧结可使用的四种固体燃料：太西煤、宝桥煤、大安山煤及焦粉的理化性能，如挥发性、着火点、反应性及干馏速度进行了测定和比较。

Currently, in order to control gas and enhance CMM recovery, various methods are adopted in Jixi Coal Mining Area such as upper roadway CMM drainage of low-permeability coal seams, upper near-horizontal hole drilling, coal seam plus-angle hole drilling, and roof large-diameter horizontal hole drilling, with satisfactory drainage results.

目前矿区为治理瓦斯，加大煤层气抽采，采用低透气性煤层的高位巷道抽采、高位钻场近水平钻孔、煤层钻场仰角钻孔抽采、顶板大直径水平钻孔等抽采方法，取得了良好的抽采效果。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷