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。
It analyzed main factors of arising spectrum analysis error which including specimen decarburization layer depth, surface roughness, describing, etc.
应用金相法考察了试样脱碳层深度的变化，从理论上初步验证了实验数据的准确性，并合理地分析了涂料的保护机理。
The changings of decarburization thickness were investigated by metallographic method. Then verified the accuracy of experimental datas in theory, and analyzed the protective mechanism of coating.
应用金相法考察了试样脱碳层深度的变化，从理论上初步验证了实验数据的准确性，并合理地分析了涂料的保护机理。
The changings of decarburization thickness were investigated by metallographic method. Then verified the accuracy of experimental datas in theory, and analyzed the protective mechanism of coating.
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