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cathode ray tube

noun
🔊/ˌkæθəʊd ˈreɪ tjuːb/
🔊/ˌkæθəʊd ˈreɪ tuːb/
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  1. a vacuum tube that was used in the past inside a television or computer screen, etc., and from which a stream of electrons produced images on the screen阴极射线管
    • the invention of the cathode ray tube阴极射线管的发明
    Topics TV, radio and newsc2