cathode ray tube
noun [ C ] electronics specialized uk/ˌkæθ.əʊd ˈreɪ tjuːb/ us/ˌkæθ.oʊd ˈreɪ tuːb/ (abbreviation CRT)
阴极射线管（电视或电脑屏幕中的组件，通过持续发射电子束显像）
a tube-shaped part in a television or computer screen, inside which a continuous flow of electrons is produced to create the images or text