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| 能量转换系统 | |||
| energy conversion system: 19 phrases in 8 subjects |
| Earth sciences | 5 |
| Electronics | 2 |
| General | 1 |
| Mechanics | 1 |
| Nautical | 1 |
| Space | 2 |
| Technology | 2 |
| Wind Energy | 5 |
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