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1·With the coal rank reduced, the light component content of the ash-free ash obtained would be increased.

随着煤阶的降低，得到的无灰煤中轻组分含量增加；

2·With the rise of the coal rank, the crystallinity of kaolinite and its order in the anthracite bed go up.

随着煤变质程度的升高，煤层夹矸中高岭石的结晶度、有序度也随之升高。

3·The effects of coal rank, cyclone and operation condition on the carbon content in fly ash were analyzed.

分析了煤质、分离器及运行条件对飞灰含碳量的影响。

4·The necessity of expanded coal rank for CWM production and saving coking coal resources were dis - cussed in this paper.

阐述了节约炼焦煤资源，扩大制备水煤浆煤种范围的必要性。

5·The results indicate that absorption energy is related with coal rank, especially with volatile matter form a linear relation.

计算结果表明，吸附热与煤的变质程度有关，特别是与煤的挥发分成线性负相关。

6·Based on The Data Bank of Chinese coal Rank source coal sources and characteristics of Huabei district were analysed and evaluated.

本文以《中国煤种资源数据库》的数据为主要依据，对华北区煤炭资源及煤质特征进行了分析评定。

7·The research shows that the extension of isolines of coal metamorphism or coal rank intersects the syncline axis trace at a high angle;

研究结果表明，煤变质指标等值线延展方向与向斜轴不平行而呈大角度相交；

8·The effects of coal rank, pyrolytic temperature of coal and mineral matter in coals or chars on their ignition temperature were determined.

使用可在加压下测定着火点的装置，研究了煤化程度、煤中矿物质和煤焦干馏温度对煤或煤焦的催化着火的影响。

9·The results indicate that the morphology and structure of char particles are dependent not only on maceral composition but also on coal rank.

这些结果表明，残炭颗粒的形态结构特征不仅依赖于煤的显微组分组成，而且也依赖于煤的变质程度。

10·Coal matrix flexibility energy decreased with the increasing of buried deepness of coal reservoir, and increased with the rising of coal rank.

煤基块弹性能随着煤储层埋深的增加而降低，随着煤级的升高而增大。