 |
| |||
| intervehicular communication | |||
| intercom; intercommunication | |||
| interior communications; intracommunication; interior communication | |||
| внутрикорабельная связь: 26 do fraz, 5 tematyki |
| Astronautyka | 2 |
| Morski | 11 |
| Okrętownictwo | 1 |
| Technika i technologia | 10 |
| Wojskowość | 2 |