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材料力学授课视频-12.2 冲击载荷和冲击韧度

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　　↓↓↓Often Viewed With：↓↓↓・工程力学 | 5.2. 剪力和弯矩 | 静力学+材料力学 | 北京化工大学 | 视频教程 | 王守新编 | 官成宇主讲
・【理论力学授课实录】河海大学机电学院机械工程专业 64-第十一章 动能定理 动力学普遍定理的综合应用
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