Substratum,hemi-spherical i2A81>68<
Flatness L/2 @633 nm on flat surface or better(specify). Y3cMC)
Figure irregularity L/10@633nm. cLJ$M`e
no chips exceeding '!cCMTj
Thickness specified at the edge, all types. KKPh~ThC
Substratum BK7 D20×5 PCX f+ 300 mm "f2$w
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!