SDTV
01
SDTV, 标准清晰度电视
a television system or display format that provides a moderate resolution and quality of video and audio compared to lower-quality formats like LDTV or higher-quality formats like HDTV
例子
Most channels used to broadcast in SDTV before HD became the standard.
在HD成为标准之前，大多数频道曾以SDTV广播。
SDTV works fine for basic cable, but if you want crisp images, you'll need to upgrade to an HD TV.
SDTV对于基本有线电视效果不错，但如果你想要清晰的图像，就需要升级到高清电视。
