随着煤热解温度的升高，煤孔隙结构和数量发生剧烈变化。
Great changes in pore structure and quantity of coal may occur as the pyrolysis temperature rises.
利用分形几何学理论对煤孔隙结构进行了定量的描述和研究，推导了煤孔隙分形维数的表达式；
The paper quantitatively stated and researched the coal borehole fissure structure with the sharp geometry theory. The paper derived the expression of the coal borehole fissure sharp dimension.
分析结果表明，原料煤的性质是影响活性炭孔隙结构的主要因素。
Obviously, the main effect factor on activated carbon pore structure is the raw material coal property.
用压汞法和CO2吸附法对突出区煤的孔隙结构特征进行了研究。
Porous structure characteristics of coal in outburst zone was studied by pressurized mercury method and CO2 absorption method.
通过试验室和现场考察，分析了煤的孔隙结构特征、瓦斯解吸速度与煤的突出危险性的关系。
The relationship between hazard of outburst and characteristic of pore-structure and velocity of gas desorption in coal seams is analyzed on basis of study in laboratory and field site.
从煤层气生成机制及其地质控制、煤储层孔隙结构与吸附/解吸行为、煤储层裂隙系统及其对渗透率的影响三个方面，有重点地总结了国外有关煤层气成因和煤储层物性研究的新进展。
With the analysis on the pressurized mercury experiments, a research was done on the development conditions of the porosity and fissure systems in the seams of the coalfield in Qinan Mining Area.
从煤层气生成机制及其地质控制、煤储层孔隙结构与吸附/解吸行为、煤储层裂隙系统及其对渗透率的影响三个方面，有重点地总结了国外有关煤层气成因和煤储层物性研究的新进展。
With the analysis on the pressurized mercury experiments, a research was done on the development conditions of the porosity and fissure systems in the seams of the coalfield in Qinan Mining Area.
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