They began to tussle with each other for the handgun.

他们互相扭打起来,抢夺那手。

The government has imposed a ban on the sale of handguns.

政府下令禁止出售手。

The Capacitor turns the signal in antiphrasis, the only thing whole. The Earphones do such long ago. The Shot of the handgun not audible.

什么是积极保护？基本原理是：发射和接收信号---放大器，体管---可变电阻的电容器---扬声器或射极的输出装置。