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| устойчивая система | |||
| стабильная система | |||
| système stable: 9 phrases in 7 subjects |
| Astronomy | 1 |
| Chemistry | 1 |
| Foreign policy | 2 |
| Mathematics | 1 |
| Metallurgy | 1 |
| Military | 2 |
| Politics | 1 |
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