?ây là m?t trong nh?ng ph??ng pháp in ?n Hello?n ??i nh?t Hello?n nay. Công ngh? Offset tuy?t v?i ??n m?c cho ra thành ph?m ??p nh?t v?i chi phí r? nh?t.SEMs give a method of getting significant-resolution photos of the sample's area. By scanning a centered beam of electrons across the specimen, these equipment crank out detailed photographs