表面积

Good relationship exists among total pore volume, specific surface area and aromatic microcrystallite size in coal char.

煤焦的总孔容、比和芳核大小之间有很好的对应关系。

After modification by organic compounds, the properties of hectorite, such as adsorption abilities, dispersivity and specific surface are improved.

锂皂石有机改性后，吸附性能、分散性及比等提高。

This paper gives the calculation method for the standard parameters such as internal surface area,volume and quality etc.of toriconical head.

文给出了折边锥形封头内、容和质量等标准参数的计算方法。