The substitution of Serial E programmable controllers for telegraph head in auto-plating line is discussed in detail which is made up of three parts .

本文详细介绍了E系列可编程序控制器用来代替 电报头子在电镀自动生产 线上的应用。介绍分三个方面。

A new telegraph line has been set up between the two cities .

那两个城市之间架设了一条新的 电报 线。

Telegraph equations can be looked as cascade connection of two-port network of lumped circuit of transmission line is a hyperbolic partial differential equations .

传输 线可以看作集中参数二端口网络的级联，其数学模型& 电报方程是一阶双曲型偏微分方程组。

Take-up can either be a continuous down coiler or a single spooler at the request of user . coil loading for insertion in telephone or telegraph line circuits

收线可以配置连续成圈下线装置以及单盘收线装置。加感线圈，插入电话或 电报 外线电路的

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

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。