A four - grade pore structure model was brought forward for the first time, while all the previous structure models were evaluated.
首次提出了分四级描述的结构模型，评价并总结了前人所提出的结构模型。
Combined with the fitting parameters obtained from the VG model, the effects of mineral composition and pore structure of the soil on SWCC are analyzed.
结合VG模型拟合的参数，着重分析了矿物成分和孔隙结构对膨胀土土水特征曲线的影响。
The development of fractal catalysts study in recent years was analyzed from four aspects: selection and assessment of catalysts, fractal pore structure, reaction dynamics and mathematics model.
从四个方面分析了近年来催化剂分形研究的方向和进展分形维数与催化剂评定和筛选，催化剂分形孔结构，分形与反应动力学，模型建立。
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