基于三轴数控机床的空间误差模型，使用三维步距规识别数控机床空间几何误差。
Based on error model, the three dimension-stop gauge was used to identify the space errors of CNC machine tools.
该模型把刀具相对于工件的空间误差表示为机床各结构件之间运动误差的位置函数。
The model expresses the relative motion errors of the tool with respect to the workpiece as a location function of its elemental errors.
研究还表明，中国劳动力迁徙具有显著的空间集聚效应，采用空间误差回归模型要明显优于OLS回归模型。
Moreover, this research found that as labor migration of China has significant space conglomeration effect, Spatial Error model is fitter to analysis of this phenomenon than OLS model is.
研究还表明，中国劳动力迁徙具有显著的空间集聚效应，采用空间误差回归模型要明显优于OLS回归模型。
Moreover, this research found that as labor migration of China has significant space conglomeration effect, Spatial Error model is fitter to analysis of this phenomenon than OLS model is.
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