It analyzed main factors of arising spectrum analysis error which including specimen decarburization layer depth, surface roughness, describing, etc.

分析了引起光谱分析误差的主要因素，如试样脱碳层深度、表面粗糙度、描迹等。

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Therefore, the treated surface clean, no decarburization, surface uniformity, distortion, and high quality.

因此，处理后的工件表面光洁、无脱碳、表面均匀、变形小、质量高。

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Is hardness tested on a surface that has been ground to remove decarburization?

硬度检测是否在去除了氧化皮的表面上进行？

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