Substratum,hemi-spherical \( s `=(t
Flatness L/2 @633 nm on flat surface or better(specify). K(?V]Mxl6
Figure irregularity L/10@633nm. =v<w29P(g
no chips exceeding st)is4
Thickness specified at the edge, all types. ;JkIZ8!
Substratum BK7 D20×5 PCX f+ 300 mm */e$S[5
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!