 |
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| dry chemical fire suppression (Alexander Demidov) | |||
| Dry chemical fire fighting | |||
| порошковое пожаротушение: 21 phrases in 7 subjects |
| Construction | 1 |
| Firefighting and fire-control systems | 13 |
| Occupational health & safety | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Production | 2 |
| Technology | 2 |