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| система питания | |||
| оперативная система | |||
| фидерная система (oleg.vigodsky) | |||
| feeder system: 12 phrases in 10 subjects |
| Astronautics | 1 |
| Electrical engineering | 1 |
| Electronics | 1 |
| Energy industry | 2 |
| Gas processing plants | 1 |
| Mass media | 1 |
| Military | 1 |
| Technology | 2 |
| Telecommunications | 1 |
| Thermal engineering | 1 |