| 单词 | compact disc |
| 释义 | > as lemmascompact disc (also disk) d. compact disc (also disk), a disc on which sound or data is recorded digitally as a spiral pattern of pits and bumps underneath a smooth transparent protective layer and reproduced by detecting the reflections of a laser beam focused on the spiral. ΘΚΠ society > communication > record > recording or reproducing sound or visual material > [noun] > disc record1878 audio disc1944 CD1979 compact disc (also disk)1979 laser disc1980 CD-ROM1983 CD-i2009 1979 Materials Engin. Sept. 34/1 As the laser moves toward the outer edge, the Compact Disc slows down from 500 to 215 rpm. 1981 New Scientist 5 Nov. 374 Philips invented the Compact Disc system, which produces an hour of digital sound from a grooveless 12-cm disc when a laser ‘reads’ it. But the company pooled its patents on laser disc technology with Sony in October 1979. In June 1980, Sony and Philips announced full cooperation on the Compact Disc for digital audio. 1983 N.Y. Times 18 Mar. d1 Many see the compact disk as a potentially enormous growth area for the languishing consumer audio-electronics industry. 1984 Sounds 29 Dec. 3/1 Compact discs are selling four times as many as they were a year ago. 1985 Which Computer? Apr. 127/3 Sony and Philips, for example, are exploring the compact disc as a medium for storing programs. 1986 Bookseller 12 Dec. 2326/2 The new trial..consists of a compact disc carrying about 300 biomedical journals. < as lemmas |
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