... 电报集中器 telegraph concentrator 电报继电器 telegraph relay 电报监频器 telegraph discriminator ...
基于248个网页-相关网页
... 电报联络线 Telegraph orderwire 电报替续器 Telegraph relay 电报信号元件 Telegraph signal element ...
基于12个网页-相关网页
automatic telegraph relay center 自动转报中心
automatic telegraph relay equipment [通信] 自动电报中继设备
automatic telegraph-relay 自动转报
mechanization of telegraph relay 电报中继的机械化
telegraph automatic relay equipment 电报自动中继设备 ; 电报自动转接设备
telegraph vibrating relay 电报振动替续器
telegraph switching relay system 电报交换系统
relay for telegraph 电报用继电器
Devices such as the telegraph and telephone relay messages by creating modulated electrical impulses, or impulses that change in a systematic way.
电报机与电话机等设备，通过产生调制电脉冲或以系统化方式变化的脉冲，来传递信息。
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。
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