trunk circuit
| identification code
| trunk circuit | |
| IT | 中继电路 |
| met. | 干线 |
| tech. | 局内线 |
| identification code | |
| gen. | 识别 码; 识别符号 |
| auto. | 识别号 码 |
| econ. | 识别代号; 识别代码 |
| IT | 标识码 |
| math. | 识别码; 程式标注符号 |
| tech. | 标识符 |
| textile | 鉴别代号 |
| |||
| 中继电路 | |||
| 干线 | |||
| 局内线 | |||
| 英国长途线两交换局之间超过15英里以上的中继线 | |||
|
trunk circuit : 26 phrases in 6 subjects |
| Communications | 2 |
| Desert science | 1 |
| Electronics | 10 |
| General | 3 |
| Technology | 6 |
| Telecommunications | 4 |