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Отображаемые элементы 1-20 из 48
| тематика/ключевые слова |
|---|
| agricultural reclamation [1] |
| air protection [1] |
| cleaning of drains [5] |
| domed liquid curtains [2] |
| drainage [1] |
| ecology [1] |
| environmental activity [1] |
| environmental pollution [1] |
| environmental problems [1] |
| environmental safety [3] |
| forestry [1] |
| furnaces [1] |
| gas boilers [1] |
| hot water boilers [1] |
| hydrology [2] |
| infiltration [1] |
| peat bogs [1] |
| power engineering [1] |
| pulsating combustion [1] |
| reclamation systems [1] |