 |
| |||
| main exchange; parent exchange | |||
| central switching office; central exchange; central office; district exchange; primary exchange | |||
|
central principal : 13 фраз в 5 тематиках |
| Машиностроение | 2 |
| Общая лексика | 4 |
| Политика | 1 |
| Телекоммуникации | 2 |
| Техника | 4 |
|
| |||
| main exchange; parent exchange | |||
| central switching office; central exchange; central office; district exchange; primary exchange | |||
|
central principal : 13 фраз в 5 тематиках |
| Машиностроение | 2 |
| Общая лексика | 4 |
| Политика | 1 |
| Телекоммуникации | 2 |
| Техника | 4 |