 |
| boiler tube: 117 phrases in 17 subjects |
| Automated equipment | 1 |
| Boiler equipment | 1 |
| Cement | 4 |
| Construction | 4 |
| Electronics | 3 |
| Energy industry | 13 |
| Makarov | 3 |
| Mechanic engineering | 11 |
| Metallurgy | 6 |
| Nautical | 21 |
| Oil / petroleum | 2 |
| Pipelines | 9 |
| Pulp and paper industry | 1 |
| Rail transport | 3 |
| Shipbuilding | 9 |
| Technology | 19 |
| Thermal engineering | 7 |