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

煤焦总孔容、比表面和芳之间有很好对应关系。

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

本文给出了折边锥形封头内表面、容和质量等标准参数计算方法。

The value of oil absorption, viscosity of Nujol mull, specific surface area, contact angle, distribution of particle size and dispersivity of the calcium carbonate particles were also characterized.

对改性前后碳酸钙粉触角、吸油率、石蜡糊粘度、粒度分布、分散性等性能进行了比较。