This article deduces the distribution formula of blackbody radiation by using thermodynamics potential formula from the definition formula of average particle number.
本文从平均粒子数定义式出发,利用热力势公式推出了黑体辐射的分布公式。
The particle volume increases by 37% after alkali and acid treatments, and the average number of hollows per particle is 8.
透射电镜结果表明,碱、酸处理后胶粒体积增大了37%,平均每个胶粒上有8个微孔。
The number, weight and volume-average diameters of the particle were calculated by optical densities.
用光密度法计祘了颗粒的数均、体均和重均粒径。
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