This paper presents a method of measuring the particle mean size and dust concentration by small angle near forward light scattering optics and the extinction theory.

本文综合前向小角光散理论及消光原理，提出一种测量粉尘平均粒径及粉尘浓度的光学方法。

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We have proposed a method of imaging based on the principle of small-angle forward scattering. We performed several simulations with Monte-Carlo method, and drew a conclusion according to the results.

曾提出利用小角度前向散射原理成像的方法，利用该方法进行了若干次模拟计算，并对结果进行了分析。

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