The results show that the mass extinction coefficient of the hollow particles increases to a great extent when contrasted with that of the solid ones unde.
结果表明，空心复合微粒相对于同外径的实心粒子，质量消光系数有较大提高。
Study on relationship between extinction coefficient and mass concentration.
气溶胶消光系数与质量浓度的相关性研究。
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