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| система подачи кислорода | |||
| кислородно-дыхательная система; система кислородного питания | |||
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供氧系统 : 12 phrases in 5 subjects |
| Aviation | 2 |
| General | 2 |
| Medical | 1 |
| Nautical | 1 |
| Technology | 6 |
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