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| English | Russian |
| high pure hydrogen | высокочистый водород (MichaelBurov) |
| pure hydrogen | чистый водород (pure H2 (H2 purity ≥ 99.99%), high pure H2 (H2 purity ≥ 99.999%), ultrapure H2 (H2 purity ≥ 99.9999% MichaelBurov) |
| ultra pure hydrogen | ультрачистый водород (pure H2 (H2 purity ≥ 99.99%), high pure H2 (H2 purity ≥ 99.999%), ultra pure H2 (H2 purity ≥ 99.9999% MichaelBurov) |