Substratum,hemi-spherical )hW {>Y3x
Flatness L/2 @633 nm on flat surface or better(specify). &n.uNe
Figure irregularity L/10@633nm. $ F7gH
no chips exceeding /VO@>Hoh
Thickness specified at the edge, all types. '?gIcWM
Substratum BK7 D20×5 PCX f+ 300 mm r)]CZ])
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!