 |
| mechanical installation: 17 phrases in 9 subjects |
| Construction | 1 |
| Ecology | 3 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |
| Metallurgy | 1 |
| Nuclear and fusion power | 1 |
| Public utilities | 2 |
| Sakhalin | 1 |
| Wiring | 6 |
|
| mechanical installation: 17 phrases in 9 subjects |
| Construction | 1 |
| Ecology | 3 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |
| Metallurgy | 1 |
| Nuclear and fusion power | 1 |
| Public utilities | 2 |
| Sakhalin | 1 |
| Wiring | 6 |