EV:Equipment Variation 設備變差 AV:Appraiser Variation 評價人變差
PV:Part Variation零件變差
在重复性的再现性的报告中有的 Repeatability - Equipment Variation (EV) Reproducibility - Appraiser Variation (AV) Repeatability & Reproducibility (R & R) Part Variation (PV) Total Variation(TV)
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