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释义

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Television (now historical )
noun
A kind of television camera tube in which a flow of electrons, produced as in an image tube, strikes a thin glass sheet and forms a pattern of positive charges corresponding to the original image, the video signal being derived by an electron beam which scans the other side of the sheet.

Origin

1940s; earliest use found in Daily Mail (Hagerstown, Maryland).

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更新时间:2024/11/10 18:58:53