低成本高频装置，高频放大方法，无线通信装置和移动电话。

Low cost high-frequency device, high-frequency amplifying method, radio communication device and mobile phone.

youdao

低成本高频装置，高频放大方法，无线通信装置和移动电话。

Low cost high-frequency device, high-frequency amplifying method, radio communication device and mobile phone.

youdao