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---个放大器，个晶---个可变电阻的电容器---个扬声器或射极的输。

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---器，晶体管---可变电阻的电容器---扬声器或射极的输出装置。

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

什极保护？基本原理：发射和接收信号---个放大器，个晶体管---个可变电阻的电容器---个扬声器或射极的输出装置。

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，晶体管---可变阻的---或射极的输出装置。

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---个放大器，个---个可变电阻的电容器---个扬器或射极的输出。

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，管---可变电阻的电容器---扬器或射极的输出装。

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---个放大，个晶体管---个可变阻---个或射极输出装置。

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

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

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---个放大器，个晶体管---个可变电阻的电容器---个扬声器或射极的输出装置。