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自转控制 : 25 phrases in 12 subjects |
| Architecture | 1 |
| Aviation | 3 |
| Business | 2 |
| Earth sciences | 2 |
| Electric machinery | 1 |
| Electronics | 4 |
| General | 3 |
| Metallurgy | 2 |
| Navigation | 1 |
| Space | 3 |
| Technology | 2 |
| Telecommunications | 1 |
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