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| химическая потребность в кислороде; ХПК (сточных вод) | |||
| химическое потребление кислорода; ХПК | |||
| German thesaurus | |||
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| DCO; fabbisogno di ossigeno chimico | |||
| chemischer Sauerstoffbedarf | |||
| Centrum für Schlaganfallforschung Berlin (ННатальЯ) | |||
| CSB: 7 phrases in 4 subjects |
| Brewery | 2 |
| Chemistry | 1 |
| General | 2 |
| Water supply | 2 |
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