本文利用实验数据建立一元线性回归方程；回归直线，并用方差分析法和相关系数法检验方程的有效性。

This paper use experimental data to set up linear regression equation with unitary and regression straight line, to use variance analysis and related coefficient to test validity of equation.

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采用最小二乘估计法对试验数据进行了拟合，得到了回归直线，并分析了不同电流下激光管的失效机制。

Least-square principle method was used to process experimental data and the regression line obtained. The failure mechanism of the He-Ne laser tube under different current has been analyzed.

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采用最小二乘估计法对试验数据进行了拟合，得到了回归直线，并分析了不同电流下激光管的失效机制。

Least-square principle method was used to process experimental data and the regression line obtained. The failure mechanism of the He-Ne laser tube under different current has been analyzed.

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