In the past, broadcasting was limited to those with the financial resources to access mass media.
过去，广播仅限于那些资金充裕的企业以使用社交媒体。
2
Receiving device, data broadcasting receiving system, access method to stored information and program.
接收装置，数据广播接收系统，存储信息访问方法和程序。
3
Data broadcasting is an important data dissemination approach in mobile environment. It can efficiently support access to hot data with common interest.