telegraph relay
短语词组
- telegraph automatic relay equipment 电报自动中继设备;电报自动转接设备
- automatic telegraph -relay 自动转报
- telegraph switching relay system 电报交换系统
- telegraph vibrating relay 电报振动替续器
- TARE Telegraph Automatic Relay Equipment 电报自动中继设备
- mechanization of telegraph relay 电报中继的机械化
- automatic telegraph relay center 自动转报中心
- automatic telegraph relay equipment [通信]自动电报中继设备
- relay for telegraph 电报用继电器 返回 telegraph relay