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| 直接循环; 直接空气循环; 正循环直接循环 | |||
| 正循环 | |||
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| 正〔空气〕循环 | |||
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прямой цикл : 19 phrases in 4 subjects |
| Astronautics | 2 |
| Electronics | 9 |
| General | 6 |
| Technology | 2 |
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