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| газовая система | |||
| 燃气系 统: 44 phrases in 10 subjects |
| Astronautics | 2 |
| Construction | 1 |
| Electronics | 1 |
| Energy industry | 1 |
| General | 8 |
| Missiles | 2 |
| Oil and gas | 1 |
| Oil processing plants | 1 |
| Technology | 26 |
| Thermal engineering | 1 |
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