 |
| oil piping: 49 phrases in 21 subjects |
| Armored vehicles | 2 |
| Automobiles | 6 |
| Construction | 1 |
| Electrical engineering | 1 |
| Electronics | 10 |
| General | 2 |
| Machine components | 1 |
| Makarov | 1 |
| Metallurgy | 1 |
| Nautical | 8 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Pumps | 1 |
| Rail transport | 1 |
| Refrigeration | 2 |
| Research and development | 1 |
| Roll stock | 1 |
| Sakhalin | 2 |
| Technology | 4 |