 |
| |||
| telephone system; telephone switchboard; telephone installation | |||
| telephone; telephone set | |||
| |||
| communications : telephones | |||
|
Telefonanlage : 8 短语, 4 学科 |
| 建造 | 1 |
| 技术 | 1 |
| 电话 | 1 |
| 通讯 | 5 |
|
| |||
| telephone system; telephone switchboard; telephone installation | |||
| telephone; telephone set | |||
| |||
| communications : telephones | |||
|
Telefonanlage : 8 短语, 4 学科 |
| 建造 | 1 |
| 技术 | 1 |
| 电话 | 1 |
| 通讯 | 5 |