 |
| |||
| обязанность хранить важные документы в течение десяти лет | |||
| 重: 356 phrases in 16 subjects |
| Aviation | 1 |
| Chemistry | 3 |
| Communications | 5 |
| Construction | 1 |
| Electronics | 2 |
| Geology | 3 |
| Mathematics | 1 |
| Metallurgy | 4 |
| Mining | 7 |
| Nautical | 5 |
| Nuclear physics | 2 |
| Physics | 5 |
| Radioengineering | 2 |
| Shipbuilding | 2 |
| Technology | 311 |
| Telephony | 2 |