To increase component of grinding force ratio can increase principal stress extreme values in grinding stress field. Materials can be removed by brittle fracture.
粗加工中，增加磨削分力比可以增大磨削应力场中的主应力极值，有助于材料的脆性去除。
The principal component regression of samples was made. The obtained results were identical with the reference analytical values.
对样品进行主成分回归分析，所得结果与参考值基本一致。
Probabilistic principal component analysis (PPCA) can realize the process monitoring (according) to the whiten values of process variables' prediction error and their scores.
概率主元分析(PPCA)能够根据过程变量的预测误差及其主元的白化值实现对过程的监控。
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