Substratum,hemi-spherical Tbf:eVIG
Flatness L/2 @633 nm on flat surface or better(specify). sN/+
Figure irregularity L/10@633nm. N.hzKq][
no chips exceeding DWf$X1M
Thickness specified at the edge, all types. dGkgaC+
Substratum BK7 D20×5 PCX f+ 300 mm {p/YCch,
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!