随机生成混凝土骨料，适用于混凝土的细观力学分析(Random generation of concrete aggregate)

一种混凝土骨料三维随机投放模型，为混凝土细观力学研究提供一种快捷的三维建模源代码。(A three-dimensional random delivery model of concrete aggregate provides a fast 3D modeling source code for concrete micromechanics research.)