PanLinx

Englisheng-000
filament cathode
普通话cmn-000丝状阴极
普通话cmn-000直热式阴极
Englisheng-000direct-heated cathode
Englisheng-000filament type cathode
Englisheng-000filamentary cathode
Englisheng-000heater cathode


PanLex

PanLex-PanLinx