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| фокус (лупы); точка зажигания | |||
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烧点 : 35 phrases in 10 subjects |
| Astronautics | 1 |
| Electricity | 1 |
| Electronics | 3 |
| General | 10 |
| Military | 1 |
| Oil processing plants | 2 |
| Physics | 2 |
| Polymers | 1 |
| Silicate industry | 1 |
| Technology | 13 |
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