【电学】阴极加热器【电学】阴极加热器

infra-red image pick-up tube cathode ray tube

hot-cathode X-ray tube

cathode-ray readout screen

lens, magnetic with permanent magnets, cathode ray tube

gas-fille d discharge tube with gaseous cathode

microchannel plate cathode-ray tube\nMCPCRT\n电子

thermionic-cathode X-ray tube

discharge tube, photoelectric with photo-emissive cathode