1.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。
2.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、容和质量等标准参数的计算方法。
3.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.