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波 导 体 : 36 phrases in 9 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Electronics | 14 |
| Information technology | 1 |
| Oil / petroleum | 2 |
| Shipbuilding | 2 |
| Space | 1 |
| Technology | 12 |
| Water resources | 2 |
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