| 单词 | standard definition |
| 释义 | > as lemmasstandard definition standard definition n. and adj. (a) n. a standard degree of definition (definition n. 5c) in a visual image, spec. that provided by a particular number of scanning lines in a televised or digital image; cf. high definition n. and adj. at high adj. and n.2 Compounds 4; (b) adj. characterized by or making use of a standard degree of definition.The two most common modes of standard definition television are 576i and 480i, in which images have a vertical resolution of 576 and 480 lines respectively. ΚΠ 1967 Photogr. Jrnl. 107 144/2 One does not normally view a transparency—or a television screen—at the print-distance of 12 in., on which the standard definition is based. 1990 Internat. Broadcasting Convent. 12/1 The maximum permissible vector magnitude..corresponds to a speed of approximately 5 seconds per picture width, beyond which..the system's resolution becomes comparable to that of standard definition television. 2008 TV Week (Sydney) 23 Feb. 27/3 If you don't have a high-resolution TV screen to watch HD shows on, you'll still see them in the same standard-definition picture quality. 2016 Post-Standard (Syracuse, N.Y.) 4 Feb. a14/3 All of the channels..are in standard definition. < as lemmas |
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