集体接收电视用放大器

line amplifier for community TV receiving system

(电话机)音频振铃接收器

приёмник тонального вызова тлф

电视接收器是一种电子装置。

The television receiver is an electronic device.

无线方向探测器一种无线电接收和指向天线系统，用来确定收到的无线电信号的角方向

A radio receiver and directional antenna used as a system to determine the angular direction of incoming radio signals.

送话器电话的一个部件，它把入射的声音转化为电脉冲，并传到一个远方的接收者那里

The portion of a telephone that converts the incident sounds into electrical impulses that are conveyed to a remote receiver.