 |
| |||
| начальный сигнал | |||
| пусковой сигнал | |||
| initial signal: 5 phrases in 4 subjects |
| Automated equipment | 2 |
| Geophysics | 1 |
| Oil and gas | 1 |
| Programming | 1 |
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