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复合 分子 : 34 phrases in 10 subjects |
| Agriculture | 1 |
| Aviation | 2 |
| Chemistry | 5 |
| Ecology | 1 |
| Electronics | 5 |
| Polymers | 5 |
| Space | 1 |
| Technology | 9 |
| Telecommunications | 2 |
| Water resources | 3 |
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