非常好的有限元课件（英文版）包括： 1.有限元基础 2.桁架结构 3.二维、三维结构 4.梁、框架结构 5.板壳结构 6.动力学分析-Finite Element Method and Application-PPT，include: 1.Foundations of FEM 2.Truss structures 3.2D and 3D solid structure 4.Beam and Frame Structures 5.Plate and S

制作ppt3D效果素材，有一些人物，物体和场景，素材可以单独使用也可以组合使用-Country ppt3D effect material, some characters, objects and scenes, the material can be used alone or in combination with

CGAL 系列 .视角范围内的3D剪裁 ppt c++ 技术方案-3D with the view range calulation plan