这些数据帮助综合接收解码器（IRD）自动调谐，给用户提供附加信息，使IRD能自动设置可供选择的业务。
These data help IRD tune automatically, provide users with an additional information, making IRD automatically set up the optional services. SI provides all data that EPG needs.
数字机顶盒也称数字电视综合解码器或数字电视综合接收机，通过数字机顶盒可以使用现有的模拟电视收看数字电视节目。
The digital Set Top Box is also called IRD (integrated receive decoder). Through the Set Top Box, we can receive the digital TV signals with analog TV.
数字机顶盒也称数字电视综合解码器或数字电视综合接收机，通过数字机顶盒可以使用现有的模拟电视收看数字电视节目。
The digital Set Top Box is also called IRD (integrated receive decoder). Through the Set Top Box, we can receive the digital TV signals with analog TV.
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