以边的检测作为STL文件错误检测的基础，建立了导入STL文件、无结构网格、流行网格、错误检测、错误修复、更新错误信息等基本修复步骤。

Proposed a basic fill process, step-by-step ordered by importing STL, unstructured mesh, popular mesh, errors detection, errors filling, update errors information.

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播放输出文件以检测其是否正确，如果效果良好，说明转换没有发生错误。

Test the output file's correctness by playing it back. If it sounds OK, it's fine.

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在文件破坏向后兼容性时，应该能够检测并报告错误。

Detect when the file breaks backward-compatibility and report an error.

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