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| коэффициент экстинкции | |||
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減 : 110 phrases in 8 subjects |
| Cinema equipment | 2 |
| Nuclear physics | 1 |
| Optics branch of physics | 2 |
| Physics | 1 |
| Radioengineering | 2 |
| Rail transport | 1 |
| Technology | 99 |
| Telephony | 2 |
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