查询词典 coal-hole

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。

With coal indirect liquefaction is exemple, dimensions is 5 million tons / year manufacturing unit, aerification is in with coal 2200-2500 10 thousand tons.

以煤间接液化为例，规模为500万吨/年的生产装置，气化用煤在2200-2500万吨。由此可见，我国在。。。。。。

Afforcement of management of coal exploit is urgent,improvement of coal exploiting efficiency and management level is in need of effective technology.

中文摘要：加强煤炭开采管理迫在眉睫，提高煤炭开采效率和管理水平急需有效的技术支持。

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。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。