thermionic tubeとは意味:真空管{しんくうかん}、熱電子管{ねつでんし かん} thermionic tube meaning: Noun: thermionic tube Electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope - tube , vacuum tube , thermionic vacuum tube , electron tube ...thermionic tube перевод:термоэлектронная лампа