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| кислородное регулирование; контроль за содержанием кислорода | |||
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氧 调节 : 32 phrases in 7 subjects |
| Aviation | 1 |
| Electronics | 2 |
| General | 7 |
| Jet engines | 1 |
| Military | 1 |
| Oil and gas | 1 |
| Technology | 19 |
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