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| уровень энергии | |||
| энергетический уровень | |||
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niveau énergétique : 21 phrases in 7 subjects |
| Antennas and waveguides | 1 |
| Automated equipment | 4 |
| Chemistry | 5 |
| Electronics | 2 |
| Medical appliances | 1 |
| Radio | 4 |
| Technology | 4 |
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