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| rotary system; rotation system | |||
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旋转系统 : 36 phrases in 10 subjects |
| Aviation | 3 |
| Electric machinery | 5 |
| Electronics | 8 |
| General | 1 |
| Mechanics | 2 |
| Plastics | 1 |
| Space | 4 |
| Technology | 10 |
| Telecommunications | 1 |
| Water resources | 1 |
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