 |
| |||
| efficiency degradation | |||
| уменьшение эффективности: 6 phrases in 4 subjects |
| Aviation | 1 |
| Makarov | 1 |
| Mass media | 2 |
| Quantum electronics | 2 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips