telegraph circuit

A signal may be considered as some sort of interruption in a field of constant energy transfer. an example is the dots and dashes that open and close the electromagnetic field of a telegraph circuit.

信号可以看作是持续能量转移领域中的某种停顿，例如电报电路的电磁场中起启闭作用的点划。

A teleprinter is really a machine which sends a typewriter message over a telegraph circuit.

打字电报机实际上是一种在电报电路上传送打印信息的机器.

A teleprinter is really a machine which sends a typewriter message over a telegraph circuit. Teletypewriters ( or teleprinters) became common for commercial use in the 1920s.

打字电报机实际上是一种在电报电路上传送打印信息的机器。1920年代电传打字机普遍用于商业。

Three-phase coupling transmission line equation is derived for the overhead transmission lines based on the distributed circuit theory and telegraph equation. The wave parameter relations between two-phase circuit transmission line equation and three-phase coupling transmission line are achieved.

基于分布参数电路理论，应用电报方程，推导出架空输电线三相全耦合传输线方程，并确定了二相回路传输线方程波参数与全耦合传输线波参数的关系。

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。