1 Results for thermionic valve
หรือค้นหา: -thermionic valve-, *thermionic valve*
Too few results, automatically try *thermionic valve*

WordNet (3.0)
tube(n) electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope, Syn. electron tube, vacuum tube, thermionic vacuum tube, thermionic valve, thermionic tube

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