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连 接树 : 14 phrases in 9 subjects |
| Artificial intelligence | 1 |
| Bridge construction | 1 |
| Electronics | 1 |
| Information technology | 3 |
| Oil / petroleum | 2 |
| Polygraphy | 1 |
| Space | 1 |
| Technology | 3 |
| Telecommunications | 1 |
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