他在1983年举行的展览期间被一群男孩包围。他们简直不能相信这些模型是实体枪的真实副本，因此想要拆卸下来研究其相似性。
During his exhibition held in 1983 he was surrounded by boys who couldn't believe that the models were true copies of real guns and wanted to disassemble them to see the similarity.
我们这里所说的模型是实体枪的细节再现。
What we are talking about here are models that reproduce real guns in details.
以结构质量为目标函数，建立了某自动武器超重部件枪尾的优化模型，进行了结构拓扑优化。
Taking structure weight as objective function, the optimization model of overweight breech of a type of automatic weapon was established, and its structure topological optimization was performed.
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