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| Hazen (ед. изм. цвета воды Alexander Demidov) | |||
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| hazen (единица цвета dongzg_anthony) | |||
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Хазен : 10 phrases in 8 subjects |
| Construction | 1 |
| Ecology | 1 |
| Firefighting and fire-control systems | 2 |
| Hydrology | 1 |
| Makarov | 1 |
| Pharmacy and pharmacology | 2 |
| Quality control and standards | 1 |
| Water resources | 1 |