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.
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