The average molecular weight of the asphalt increased in ageing.

老化之后平均相对分子质量显著增大.

Determination of Average Molecular Weight of Polymer by Viscosity …

高分子聚合物对环境及人体健康危害初探。

And the relationship between the weight average molecular weight of the copolymer and its scale inhibiting was analyzed.

考察了反应条件对共聚物产率和重均分子量的影响，并研究了重均分子量与其阻垢性能的关系。

Gel Permeation Chromatography was used to determine the distribution and average molecular weight of polyether polyols.

用凝胶渗透色谱测定聚醚多元醇的相对分子质量及其分布。

The coupling efficiency increased with the increase of coupling agent amount and reduced with the increase of number-average molecular weight per arm.

偶联效率随偶联剂用量的增加而提高；单臂数均分子量的增大会使偶联效率降低；

The change of viscosity and average molecular weight of heavy oil from Liaohe oilfield with temperature and reaction time are investigated in the paper.

探讨了在注蒸气条件下，稠油的粘度和平均分子量随蒸气温度、反应时间的变化规律，研究了金属盐、油层矿物对稠油水热裂解反应的影响。

The axial distribution of filling factor and the viscosity average molecular weight of the material were investigated relating to the screw configuration.

用静态实验法对一组螺杆结构的填充度分布和粘均分子量沿螺杆轴向分布进行计算。