|
well pattern : 67 phrases in 14 subjects |
| Drilling | 2 |
| Gas processing plants | 1 |
| General | 2 |
| Geology | 1 |
| Geophysics | 3 |
| Makarov | 2 |
| Natural resourses and wildlife conservation | 2 |
| Oil / petroleum | 13 |
| Oil and gas | 9 |
| Oil and gas technology | 7 |
| Oilfields | 10 |
| Quantum electronics | 1 |
| Technology | 13 |
| Textile industry | 1 |