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单词 cathode ray tube
释义 cathode ray tubeBrE /ˌkæθəʊd ˈreɪ tjuːb/NAmE /ˌkæθoʊd ˈreɪ tuːb/ nouna vacuum tube which was used in the past inside a television or computer screen, etc. from which a stream of electrons produced images on the screen 阴极射线管
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