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目的：设计一套计算机程序，用于计算和分析颗粒粒度分布。方法：在Ｗｉｎｄｏｗｓ界面下，采用ＶｉｓｕａｌＢａｓｉｃ程序设计语言进行设计。结果：所得到的粒度分布计算和分析程序，可以安装在Ｗｉｎｄｏｗｓ平台下运行。程序具有计算平均粒径和颗粒分散程度，以及绘制累积粒度分布、对数正态分布和威布尔分布图形等功能。结论：程序界面直观，操作简单，计算准确、快速
Purpose: To design a computer program for calculating and analyzing the particle size distribution. Methods: In the Windows interface, using VisualBasic programming language design. Results: The resulting particle size distribution calculation and analysis program can be run on a Windows platform. The program has the functions of calculating the average particle size and degree of particle dispersion as well as plotting the cumulative particle size distribution, log normal distribution and Weibull distribution pattern. Conclusion: The program interface is intuitive, easy to operate, accurate and fast calculation