IN TEM DáN HộP SECRETS

Condenser aperture-A small laser-bored hole inside of a flat strip of molybdenum put close to the condenser lens that can help to limit spherical aberration.Saturation Issue-The purpose at which superior electron emission from the gun is accomplished with out shortening the filament lifetime appreciably.Do vậy nếu có nhu cầu sử dụng dị