這個錯誤是什么意思？？？怎么解決呢？？？
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The volume of 3147 elements is zero, small, or negative. Check coordinates or node numbering, or modify the mesh seed. In the case of a tetrahedron this error may indicate that all nodes are located very nearly in a plane. The elements have been identified in element set ErrElemVolSmallNegZero.
Analysis Input File Processor exited with an error.
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