Substratum,hemi-spherical ?#a&eW
Flatness L/2 @633 nm on flat surface or better(specify). R<fF
^^
Figure irregularity L/10@633nm. `StuUa
no chips exceeding q{V e%8$"
Thickness specified at the edge, all types. &KBDrJEX
Substratum BK7 D20×5 PCX f+ 300 mm &_]G0~e
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!