In the paper,the research process is introduced that through established metal abrasion verity value,symbolic statistics theory is applied,and a new unitary linearity return module is set up.

• 介绍了南昌铁路局针对现行发射光谱分析金属磨损诊断理论的不足,运用数理统计原理通过建立金属磨损真实值,创建新的一元线性回归模型,完善发射光谱分析金属磨损诊断理论的研究过程。