GB/T 40742.4-2021
产品几何技术规范(GPS) 几何精度的检测与验证 第4部分:尺寸和几何误差评定、最小区域的判别模式
Geometrical product specifications (GPS)—Geometrical precision verification—Part 4:Evaluation of dimension and geometrical error,discriminant pattern of minimum zone
GBT40742.4-2021, GB40742.4-2021