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| граничная зона; пограничная область | |||
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边界区 : 41 phrases in 8 subjects |
| Aerodynamics | 1 |
| Aviation | 3 |
| Electronics | 8 |
| General | 14 |
| Geology | 1 |
| Mathematics | 2 |
| Mining | 1 |
| Technology | 11 |
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