坐标值

扩展不确定度(取k = 2)

X

U(X) = k*U_c(X) = 2*1.37 = 2.74 mm

Y

U(Y) = k*U_c(Y) = 2*1.18 = 2.36 mm

Z

U(Z) = k*U_c(Z) = 2*1.41 = 2.82 mm