 |
| |||
| comprehensive study (more UK hits Alexander Demidov); comprehensive survey (MichaelBurov); in-depth examination (MichaelBurov) | |||
| integrated study | |||
| комплексное изучение: 9 phrases in 8 subjects |
| Astronautics | 1 |
| Ecology | 1 |
| Geology | 1 |
| Makarov | 1 |
| Military | 1 |
| Oil and gas | 1 |
| Sakhalin | 1 |
| Technology | 2 |