型材截面面积提取、米重计算与数据导出

关于这个 Skill

提交dxf格式的文件，自动计算型材截面面积、米重。并导出相关数据。This skill should be used when the user asks to calculate profile cross-section area, compute weight per meter (米重/线密度) from CAD/DXF drawings, export profile weight data, or mentions keywords like 型材、截面、米重、线密度、DXF、铝型材重量、钢型材重量、截面面积计算。Also triggered when user provides a DXF file and wants engineering property extraction.