 |
| oil hole: 90 phrases in 18 subjects |
| Armored vehicles | 4 |
| Automated equipment | 6 |
| Automobiles | 9 |
| Aviation | 1 |
| Engines | 2 |
| Makarov | 1 |
| Mechanics | 1 |
| Military | 1 |
| Mining | 1 |
| Oil / petroleum | 6 |
| Oil and gas | 4 |
| Oilfields | 3 |
| Production | 2 |
| Rail transport | 2 |
| Sakhalin | 1 |
| Technology | 36 |
| Transport | 9 |
| Weapons and gunsmithing | 1 |