RUMORED BUZZ ON IN TEM NHANH

Condenser aperture-A little laser-bored hole inside a flat strip of molybdenum put close to the condenser lens that assists to Restrict spherical aberration.Whilst diffraction can be valuable, diffraction of electron waves round the aperture openings can interfere Together with the First wave front.Dưới đây là một số mẫu tem decal trong