 |
| |||
| opening | |||
| hatchway (гидротехнического сооружения) | |||
| отверствие: 26 phrases in 12 subjects |
| Animal husbandry | 1 |
| Astronomy | 3 |
| Aviation | 1 |
| Construction | 6 |
| Information technology | 3 |
| Medical | 1 |
| Metallurgy | 1 |
| Microelectronics | 1 |
| Sakhalin | 2 |
| Technology | 3 |
| Weapons and gunsmithing | 3 |
| Welding | 1 |