 |
| |||
| гремучий газ | |||
| 爆炸性 气: 15 phrases in 4 subjects |
| Firefighting and fire-control systems | 1 |
| General | 7 |
| Oil processing plants | 2 |
| Technology | 5 |
|
| |||
| гремучий газ | |||
| 爆炸性 气: 15 phrases in 4 subjects |
| Firefighting and fire-control systems | 1 |
| General | 7 |
| Oil processing plants | 2 |
| Technology | 5 |