SR technology has been the key technology of the 3rd generation mobile communication system.

软件无线电技术已经成为第三代移动通信系统中的关键技术。

youdao

SR technology has been the key technology of the 3rd generation mobile communication system.

软件无线电技术已经成为第三代移动通信系统中的关键技术。

youdao