It had gone on theory study and measure to mechanism of graphite particle 's absorbing and scattering infrared.

对石墨微粒吸收和散射红外光的机理进行了理论研究和测试。

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Based on the analytical theory of multiple scattering, the millimeter wave propagation and scattering in discrete random media were investigated by means of the particle-tracking method.

根据多重散射的解析理论，利用粒子跟踪法研究了毫米波在离散随机介质中的传播与散射。

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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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