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中文摘要：
在研究大尺度的三维地球动力学问题的数值模拟过程中，往往需要对整个球体或部分球壳生成计算网格，而且网格单元的尺寸对所研究的问题尤为重要．计算网格既满足地球物理分析的需要，又要避免内部网格过小的浪费．本文提出了一种地球结构化网格的生成和加密划分方案，可以对整个球体形成较为均匀的网格，并能够对近地表的区域完成网格加密以达到地球物理分析的需要．生成的网格在简单的试算中，得到了优异的结果．
英文摘要：
In 3D geodynamics numerical simulation research, it is often required to mesh the whole Earth or part of the spherical shell, and the size of mesh is much more important to our research. Computing meshes not only meets the need of the geophysical analysis, but also avoids the computing redundancy caused by too small meshes near the core. In this paper, one structured refining meshing scheme is presented for Earth, which can make all mesh sizes in the Earth more uniform, and refine the meshes near the surface area so as to meet the need of the geophysical analysis. And in the simple computing trial for the earth meshes generated by the mesh scheme in this paper, good results are obtained.
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