| 释义 |
teletext
tel·e·text T0092400 (tĕl′ĭ-tĕkst′)n. An electronic communications system in which printed information is broadcast by television signal to sets equipped with decoders.Teletext (ˈtɛlɪˌtɛkst) n1. (Broadcasting) trademark (in Britain, formerly) the ITV teletext service. See Ceefax2. (Broadcasting) (without capital) a form of Videotex in which information is broadcast by a television station and received on an adapted television settel•e•text (ˈtɛl ɪˌtɛkst)
n. a data-broadcasting system that displays printed information as well as graphics on television screens. teletextA fast form of telex that links word processors through a telephone line. Developed in Europe in the 1980s as a fast information service.Translationstelescope (ˈteliskəup) noun a kind of tube containing lenses through which distant objects appear closer. He looked at the ship through his telescope. 望遠鏡 望远镜 verb to push or be pushed together so that one part slides inside another, like the parts of a closing telescope. The crash telescoped the railway coaches. 使套疊，使相嵌 （使某物）叠缩，嵌入 ˌteleˈscopic (-ˈsko-) adjective1. of, like, or containing, a telescope. a telescopic sight on a rifle. 望遠鏡的 望远镜的2. made in parts which can slide inside each other. a telescopic radio aerial. 能伸縮的 能伸缩的teletext (ˈteliˌtekst) noun a system of TV broadcasts of text only, providing all sorts of information eg weather forecasts, train timetables, news reports, jokes and lottery results. 文字電視廣播 文字电视广播teletext
teletext: see videotexvideotex,
communications service that is linked to an adapted television receiver or a personal computer by telephone lines, cable television facilities, or the like, and that allows a user to retrieve and display alphanumeric and pictorial information at home.
..... Click the link for more information. .teletext[′tel·ə‚tekst] (communications) A data broadcasting service in which preprogrammed sequences of frames of data are broadcast cyclically, and a user equipped with a standard television receiver and a special decoder selects the desired frames of information for viewing. teletextA broadcasting service that transmitted text to a TV set with a built-in teletext decoder. Introduced in the 1970s in the U.K., the text was transmitted in the vertical blanking interval between frames of the TV signal. Teletext was occasionally used in the U.S. and Canada but never really caught on. It was also used in Australia until 2009. Elements of teletext are still used for closed captions.
A Rotating Rolodex
Different kinds of information such as news, finance and weather were displayed in a series of continuously rotating teletext frames, which could be selected from a program guide. See vertical blanking interval, closed captions and videotex.MedicalSeetelescopeSee TTX
See TT
See TT |