 |
| |||
| mouth of pipe | |||
| line bore; line opening | |||
| отверстие трубопровода: 39 phrases in 12 subjects |
| Astronautics | 1 |
| Construction | 4 |
| Hydraulic engineering | 1 |
| Makarov | 2 |
| Metallurgy | 1 |
| Mining | 2 |
| Oil / petroleum | 2 |
| Oil and gas | 6 |
| Oil and gas technology | 1 |
| Sakhalin | 3 |
| Technology | 15 |
| Transport | 1 |