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| rotational energy level | |||
| rotational level | |||
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| rotational energy level; rotational level | |||
| rotational energy level | |||
| вращательный уровень: 30 phrases in 7 subjects |
| Electronics | 4 |
| Household appliances | 3 |
| Makarov | 9 |
| Mathematics | 1 |
| Nanotechnology | 7 |
| Physics | 4 |
| Technology | 2 |