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| cooling turbine unit | |||
| air cycle machine | |||
| 空气 循环机: 24 phrases in 7 subjects |
| Electric machinery | 3 |
| Electronics | 3 |
| Mechanics | 1 |
| Nuclear physics | 1 |
| Refrigeration | 1 |
| Space | 6 |
| Technology | 9 |
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