单电子枪三色显像管 single-gun tricolor tube

单枪电子三色管 single-gun tricolour tube

单枪三束电子枪和荫栅 Aperture Grille

单电位电子枪 [电子] unipotential gun

单独抽气电子枪 [电子] separately pumped electron gun

和单电位电子枪 Uni-Potential Focus

单聚焦电子枪 single focus cathode-ray gun