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本文通过对机床数控中逐点比较法等常用插补方法的误差分析，提出了一种既考虑速度条件，同时又考虑偏差条件的插补方法──半步偏差法。文中导出了该插补方法的极为简洁的递推计算公式。
In this paper, error analysis of common interpolation methods such as point-by-point comparison in machine tool numerical control is proposed. An interpolation method considering both speed and bias is proposed. In this paper, we derive a very concise recursion formula for the interpolation method.