Substratum,hemi-spherical
U8(Nk\"X\
Flatness L/2 @633 nm on flat surface or better(specify). 1xc~`~
Figure irregularity L/10@633nm. rcGb[=B f
no chips exceeding Wpc|`e<
Thickness specified at the edge, all types. N
D<HXO
Substratum BK7 D20×5 PCX f+ 300 mm `
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有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!