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| pentad | |||
| pentad (напр., предметов) | |||
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группа из пяти : 10 phrases in 6 subjects |
| Electronics | 1 |
| General | 5 |
| Geology | 1 |
| Information security and data protection | 1 |
| Telecommunications | 1 |
| Uncommon / rare | 1 |
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