【Key words】 CMM； precision verification； one-dimensional ball row； method of combination calibration； uncertainty；
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model precision verification 模型精度检验
There are some objects used as reference in precision verification of CNC machine tool and CMM.
在CNC机床和三坐标测量机精度检定中，通常采用一些实物作为基准。
And with optimizing the measure condition, standard sample verification showed the measurement was quick and its precision, accuracy and recovery met the requirement.
经标准样品验证，该方法定量准确，分析速度快，精密度，回收率和准确度均符合要求。
Through the actual verification, the predictions are satisfied with forming and spring-back of compensation parts, to improve the forming precision of parts.
经实际加工验证，该预测值能够较好地补偿零件成形回弹，提高零件成形精度。
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