最小二乘直线 是指已知数据点到该直线距离的平方和最小，即具有最小二乘解。
这个新方法是一种把最小二乘直线进行“逐步逼近转动操作”的方法。
It is a method making the least square line into successive approximation turn operation.
本文阐述了轴线直线度误差最小二乘评定法与最小条件评定法的数学模型。
The mathematical models of axis straightness errors by Least Square evaluation and minimum condition are discussed in this paper.
本文提出了一种复合数字滤波方法及基于最小二乘原理的直线拟合方法，用于实现火炮接口参数检测系统的滤波和线性度拟合。
A compound digital filtering method and a line fitting method based on the least squares are presented, which are used in the measurement system of interface parameters of artillery.
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