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| инвариантная система; нонвариантная система | |||
| безвариантная система | |||
| invariant system: 31 phrases in 7 subjects |
| Automated equipment | 6 |
| Automatic control | 4 |
| Electronics | 5 |
| Mass media | 2 |
| Mathematics | 2 |
| Mechanics | 2 |
| Programming | 10 |
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