Substratum,hemi-spherical Q:?]:i/*
Flatness L/2 @633 nm on flat surface or better(specify). B6r~4=w_
Figure irregularity L/10@633nm. S N_!o2F2
no chips exceeding =1g
Thickness specified at the edge, all types. y05(/NH>
Substratum BK7 D20×5 PCX f+ 300 mm )qs>Z?7
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!