Substratum,hemi-spherical e.X*x4*>~
Flatness L/2 @633 nm on flat surface or better(specify). wBr$3:
Figure irregularity L/10@633nm. D,FX&{TYU
no chips exceeding >^vyp!
Thickness specified at the edge, all types. e))fbv&V
Substratum BK7 D20×5 PCX f+ 300 mm -8;@NAUa
有哪位哥哥姐姐懂的,帮忙翻译一下,诚谢!!