ITU-R 721-1990 标准详情
- 标准号：ITU-R 721-1990
- 中文标题：
- 英文标题：(withdrawn) transmission of component-coded digital television signals for contribution-quality applications at bit rates near 140 mbit/s - section cmtt a - television transmission standards and performance objectives
- 标准类别：国际电信联盟标准
- 发布日期：1990-01-01
