碳气凝胶是一种新型多孔碳材料，具有比表面积大、电导率高的特点。
Carbon aerogels are a kind of new porous carbon materials and have high specific surface area and conductance.
该填料因具有较大孔隙率和比表面积且结构呈针状，对大气泡可有效切割，氧传递系数较大。
The oxygen transfer coefficient is bigger relatively because of its big void rate and specific surface area.
分形特征与水泥宏观性质，如净浆流动度、比表面积、减水率之间存在较好的相关性。
The author calculates the fractal dimensions and find the rule of fractal dimensions and cement specific surface area, cement paste fluidity as well as water reducing ratio.
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