How to pronounce thermionic vacuum tube in Portuguese?

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thermionic vacuum tube::noun | Spocien Dictionary

thermionic vacuum tube

noun

electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

Type	Words
Synonyms	electron tube, thermionic tube, thermionic valve, tube, vacuum tube
Type of	electronic device
Has types	acorn tube, magnetron, pentode, rectifying tube, rectifying valve, television-camera tube, television pickup tube, tetrode, triode, x-ray tube, diode, electron multiplier, gas-discharge tube, klystron