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| осветительная система | |||
| lightning system: 17 phrases in 12 subjects |
| Astronautics | 2 |
| Aviation | 3 |
| Computers | 1 |
| Electronics | 1 |
| General | 1 |
| Insurance | 1 |
| Military | 2 |
| Natural resourses and wildlife conservation | 1 |
| Nuclear and fusion power | 1 |
| Sakhalin | 1 |
| Technology | 2 |
| Telecommunications | 1 |