line telegraph unit

Interference from one telegraph circuit to another telegraph circuit or into telephone circuits.

一条电报线路或电话线路对另一条电报线路或电话线路的干扰。

On the technical side, telegraph lines are hard to maintain.

从技术角度来说电报线路难以维修。

among these were a relay booster for telegraph lines and a fire-safety curtain for theaters.

其中包括电报线路的继电调压器和剧院防火帘。

The railroad acted onCarnegie's suggestions and did build its own telegraph lines.

铁路局听从卡内基的建议，建起了自己的电报线路。

coil, loading, for insertion in telephone or telegraph line circuits

加感线圈,插入电话或电报外线电路的

A communications cable, as one used to transmit telephone or telegraph signals.

陆上线路通讯电缆，如用来传递电话或电报信号

CONNECT A JUMPER WIRE BETWEEN THE RED BRAKE WARNING LAMP CIRCUIT AND GROUN

在红色煞车警报灯电路与地之间连接跳线。

A Design of Prediction System of Data Collecting-Based on Telephone Wire;

基于电话线路的数据采集测报系统设计

radio typewriter

无线电电传打字电报机

wired telegraph-type fire alarm box

有线电报式火灾报警箱

set of voice-frequency multiplex telegraph circuits

音频复用电报电路群

gentex exchange

公众电报电路交换局

long-range telephone and telegraph radio communications

远程无线电话电报通讯

syntonic wireless telegraphy

共振无线电报 (电讯)

A wire or system of wires connecting telephone or telegraph systems.

电话线连接电话或电报系统的电线或电线系统

n-Circuit tester

电路板线路自动测试机

overall line equivalent

整个线路的等效电路

polarized signal control line circuit

信号控制极化线路电路