The packing possesses large specific pore volume, high column efficiency, wide separation range of molecular weight and long life time.
该种填料孔容大，拄效高，分离范围广，使用寿命长。
The fractal characteristics of petroleum coke combustion are validated, which proves that the change of surface fractal dimension differs from that of specific surface area and pore volume.
石油焦的燃烧具有分形动力学的行为特征，且表面分形维数的变化趋势和比表面积和孔容积不同。
According to measurements, the specific pore surface area and pore volume of petroleum coke (PC) during combustion were found to: first increase, then decrease and increase again.
通过对石油焦燃烧过程中不同燃尽率焦样的比表面积和孔容积的测定，表明石油焦的比表面积和孔容积先增大，后减小到一定数值，最后再增大。
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