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| свободные автоколебания | |||
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自由 自振 : 44 phrases in 8 subjects |
| Automated equipment | 1 |
| Aviation | 2 |
| Electricity | 1 |
| Electronics | 9 |
| General | 9 |
| Geology | 1 |
| Radio | 2 |
| Technology | 19 |
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