| 1. | 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。 |
| 2. | Leased telegraph circuits were in operation between hong kong and overseas administrations
供香港与海外行政机关之间通讯的电报专线开始运作。 |
| 3. | 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。 |
| 4. | Franchised licence was granted to cable & wireless limited to provide external telephone and telegraph circuits and services until 31 december 1987
大东电报局获发提供对外电话及电报线路和服务的专营牌照，有效期至一九八七年十二月三十一日。 |
| 5. | Apparatus for connection to private circuits run by certain public telecommunication operators - specification for apparatus for connection to telegraph circuits using scvf signalling
英国通信网家用线路连接设备.第4部分:用sevf信号连接电报机电路装置规范 |
